效果图:
代码如下,将代码存为html。用浏览器直接运行
代码
<HTML><HEAD><TITLE>科学计算器</TITLE>
<META content="text/html; charset=gb2312" http-equiv=Content-Type><!----><!--2000.8-->
<STYLE>BODY {
BACKGROUND-ATTACHMENT: fixed; BACKGROUND-COLOR: #edf0e1; COLOR: #0001fc; FONT-FAMILY: "宋体", "Arial", "Times New Roman"; FONT-SIZE: 9pt
}
TD {
FONT-FAMILY: "宋体", "Arial Narrow", "Times New Roman"; FONT-SIZE: 9pt; font-color: #000000
}
</STYLE>
<SCRIPT language=javascript>
<!--
var endNumber = true
var mem = 0
var carry = 10
var hexnum = "0123456789abcdef"
var angle = "d"
var stack = ""
var level = "0"
var layer = 0
//数字键
function inputkey(key) {
var index = key.charCodeAt(0);
if ((carry == 2 && (index == 48 || index == 49))
|| (carry == 8 && index >= 48 && index <= 55)
|| (carry == 10 && (index >= 48 && index <= 57 || index == 46))
|| (carry == 16 && ((index >= 48 && index <= 57) || (index >= 97 && index <= 102))))
if (endNumber) {
endNumber = false
document.calc.display.value = key
}
else if (document.calc.display.value == null || document.calc.display.value == "0")
document.calc.display.value = key
else
document.calc.display.value += key
}
function changeSign() {
if (document.calc.display.value != "0")
if (document.calc.display.value.substr(0, 1) == "-")
document.calc.display.value = document.calc.display.value.substr(1)
else
document.calc.display.value = "-" + document.calc.display.value
}
//函数键
function inputfunction(fun, shiftfun) {
endNumber = true
if (document.calc.shiftf.checked)
document.calc.display.value = decto(funcalc(shiftfun, (todec(document.calc.display.value, carry))), carry)
else
document.calc.display.value = decto(funcalc(fun, (todec(document.calc.display.value, carry))), carry)
document.calc.shiftf.checked = false
document.calc.hypf.checked = false
inputshift()
}
function inputtrig(trig, arctrig, hyp, archyp) {
if (document.calc.hypf.checked)
inputfunction(hyp, archyp)
else
inputfunction(trig, arctrig)
}
//运算符
function operation(join, newlevel) {
endNumber = true
var temp = stack.substr(stack.lastIndexOf("(") + 1) + document.calc.display.value
while (newlevel != 0 && (newlevel <= (level.charAt(level.length - 1)))) {
temp = parse(temp)
level = level.slice(0, -1)
}
if (temp.match(/^(.*\d[\+\-\*\/\%\^\&\|x])?([+-]?[0-9a-f\.]+)$/))
document.calc.display.value = RegExp.$2
stack = stack.substr(0, stack.lastIndexOf("(") + 1) + temp + join
document.calc.operator.value = " " + join + " "
level = level + newlevel
}
//括号
function addbracket() {
endNumber = true
document.calc.display.value = 0
stack = stack + "("
document.calc.operator.value = " "
level = level + 0
layer += 1
document.calc.bracket.value = "(=" + layer
}
function disbracket() {
endNumber = true
var temp = stack.substr(stack.lastIndexOf("(") + 1) + document.calc.display.value
while ((level.charAt(level.length - 1)) > 0) {
temp = parse(temp)
level = level.slice(0, -1)
}
document.calc.display.value = temp
stack = stack.substr(0, stack.lastIndexOf("("))
document.calc.operator.value = " "
level = level.slice(0, -1)
layer -= 1
if (layer > 0)
document.calc.bracket.value = "(=" + layer
else
document.calc.bracket.value = ""
}
//等号
function result() {
endNumber = true
while (layer > 0)
disbracket()
var temp = stack + document.calc.display.value
while ((level.charAt(level.length - 1)) > 0) {
temp = parse(temp)
level = level.slice(0, -1)
}
document.calc.display.value = temp
document.calc.bracket.value = ""
document.calc.operator.value = ""
stack = ""
level = "0"
}
//修改键
function backspace() {
if (!endNumber) {
if (document.calc.display.value.length > 1)
document.calc.display.value = document.calc.display.value.substring(0, document.calc.display.value.length - 1)
else
document.calc.display.value = 0
}
}
function clearall() {
document.calc.display.value = 0
endNumber = true
stack = ""
level = "0"
layer = ""
document.calc.operator.value = ""
document.calc.bracket.value = ""
}
//转换键
function inputChangCarry(newcarry) {
endNumber = true
document.calc.display.value = (decto(todec(document.calc.display.value, carry), newcarry))
carry = newcarry
document.calc.sin.disabled = (carry != 10)
document.calc.cos.disabled = (carry != 10)
document.calc.tan.disabled = (carry != 10)
document.calc.bt.disabled = (carry != 10)
document.calc.pi.disabled = (carry != 10)
document.calc.e.disabled = (carry != 10)
document.calc.kp.disabled = (carry != 10)
document.calc.k2.disabled = (carry <= 2)
document.calc.k3.disabled = (carry <= 2)
document.calc.k4.disabled = (carry <= 2)
document.calc.k5.disabled = (carry <= 2)
document.calc.k6.disabled = (carry <= 2)
document.calc.k7.disabled = (carry <= 2)
document.calc.k8.disabled = (carry <= 8)
document.calc.k9.disabled = (carry <= 8)
document.calc.ka.disabled = (carry <= 10)
document.calc.kb.disabled = (carry <= 10)
document.calc.kc.disabled = (carry <= 10)
document.calc.kd.disabled = (carry <= 10)
document.calc.ke.disabled = (carry <= 10)
document.calc.kf.disabled = (carry <= 10)
}
function inputChangAngle(angletype) {
endNumber = true
angle = angletype
if (angle == "d")
document.calc.display.value = radiansToDegress(document.calc.display.value)
else
document.calc.display.value = degressToRadians(document.calc.display.value)
endNumber = true
}
function inputshift() {
if (document.calc.shiftf.checked) {
document.calc.bt.value = "deg "
document.calc.ln.value = "exp "
document.calc.log.value = "expd"
if (document.calc.hypf.checked) {
document.calc.sin.value = "ahs "
document.calc.cos.value = "ahc "
document.calc.tan.value = "aht "
}
else {
document.calc.sin.value = "asin"
document.calc.cos.value = "acos"
document.calc.tan.value = "atan"
}
document.calc.sqr.value = "x^.5"
document.calc.cube.value = "x^.3"
document.calc.floor.value = "小数"
}
else {
document.calc.bt.value = "d.ms"
document.calc.ln.value = " ln "
document.calc.log.value = "log "
if (document.calc.hypf.checked) {
document.calc.sin.value = "hsin"
document.calc.cos.value = "hcos"
document.calc.tan.value = "htan"
}
else {
document.calc.sin.value = "sin "
document.calc.cos.value = "cos "
document.calc.tan.value = "tan "
}
document.calc.sqr.value = "x^2 "
document.calc.cube.value = "x^3 "
document.calc.floor.value = "取整"
}
}
//存储器部分
function clearmemory() {
mem = 0
document.calc.memory.value = " "
}
function getmemory() {
endNumber = true
document.calc.display.value = decto(mem, carry)
}
function putmemory() {
endNumber = true
if (document.calc.display.value != 0) {
mem = todec(document.calc.display.value, carry)
document.calc.memory.value = " M "
}
else
document.calc.memory.value = " "
}
function addmemory() {
endNumber = true
mem = parseFloat(mem) + parseFloat(todec(document.calc.display.value, carry))
if (mem == 0)
document.calc.memory.value = " "
else
document.calc.memory.value = " M "
}
function multimemory() {
endNumber = true
mem = parseFloat(mem) * parseFloat(todec(document.calc.display.value, carry))
if (mem == 0)
document.calc.memory.value = " "
else
document.calc.memory.value = " M "
}
//十进制转换
function todec(num, oldcarry) {
if (oldcarry == 10 || num == 0) return (num)
var neg = (num.charAt(0) == "-")
if (neg) num = num.substr(1)
var newnum = 0
for (var index = 1; index <= num.length; index++)
newnum = newnum * oldcarry + hexnum.indexOf(num.charAt(index - 1))
if (neg)
newnum = -newnum
return (newnum)
}
function decto(num, newcarry) {
var neg = (num < 0)
if (newcarry == 10 || num == 0) return (num)
num = "" + Math.abs(num)
var newnum = ""
while (num != 0) {
newnum = hexnum.charAt(num % newcarry) + newnum
num = Math.floor(num / newcarry)
}
if (neg)
newnum = "-" + newnum
return (newnum)
}
//表达式解析
function parse(string) {
if (string.match(/^(.*\d[\+\-\*\/\%\^\&\|x\<])?([+-]?[0-9a-f\.]+)([\+\-\*\/\%\^\&\|x\<])([+-]?[0-9a-f\.]+)$/))
return (RegExp.$1 + cypher(RegExp.$2, RegExp.$3, RegExp.$4))
else
return (string)
}
//数学运算和位运算
function cypher(left, join, right) {
left = todec(left, carry)
right = todec(right, carry)
if (join == "+")
return (decto(parseFloat(left) + parseFloat(right), carry))
if (join == "-")
return (decto(left - right, carry))
if (join == "*")
return (decto(left * right, carry))
if (join == "/" && right != 0)
return (decto(left / right, carry))
if (join == "%")
return (decto(left % right, carry))
if (join == "&")
return (decto(left & right, carry))
if (join == "|")
return (decto(left | right, carry))
if (join == "^")
return (decto(Math.pow(left, right), carry))
if (join == "x")
return (decto(left ^ right, carry))
if (join == "<")
return (decto(left << right, carry))
alert("除数不能为零")
return (left)
}
//函数计算
function funcalc(fun, num) {
with (Math) {
if (fun == "pi")
return (PI)
if (fun == "e")
return (E)
if (fun == "abs")
return (abs(num))
if (fun == "ceil")
return (ceil(num))
if (fun == "round")
return (round(num))
if (fun == "floor")
return (floor(num))
if (fun == "deci")
return (num - floor(num))
if (fun == "ln" && num > 0)
return (log(num))
if (fun == "exp")
return (exp(num))
if (fun == "log" && num > 0)
return (log(num) * LOG10E)
if (fun == "expdec")
return (pow(10, num))
if (fun == "cube")
return (num * num * num)
if (fun == "cubt")
return (pow(num, 1 / 3))
if (fun == "sqr")
return (num * num)
if (fun == "sqrt" && num >= 0)
return (sqrt(num))
if (fun == "!")
return (factorial(num))
if (fun == "recip" && num != 0)
return (1 / num)
if (fun == "dms")
return (dms(num))
if (fun == "deg")
return (deg(num))
if (fun == "~")
return (~num)
if (angle == "d") {
if (fun == "sin")
return (sin(degressToRadians(num)))
if (fun == "cos")
return (cos(degressToRadians(num)))
if (fun == "tan")
return (tan(degressToRadians(num)))
if (fun == "arcsin" && abs(num) <= 1)
return (radiansToDegress(asin(num)))
if (fun == "arccos" && abs(num) <= 1)
return (radiansToDegress(acos(num)))
if (fun == "arctan")
return (radiansToDegress(atan(num)))
}
else {
if (fun == "sin")
return (sin(num))
if (fun == "cos")
return (cos(num))
if (fun == "tan")
return (tan(num))
if (fun == "arcsin" && abs(num) <= 1)
return (asin(num))
if (fun == "arccos" && abs(num) <= 1)
return (acos(num))
if (fun == "arctan")
return (atan(num))
}
if (fun == "hypsin")
return ((exp(num) - exp(0 - num)) * 0.5)
if (fun == "hypcos")
return ((exp(num) + exp(-num)) * 0.5)
if (fun == "hyptan")
return ((exp(num) - exp(-num)) / (exp(num) + exp(-num)))
if (fun == "ahypsin" | fun == "hypcos" | fun == "hyptan") {
alert("对不起,公式还没有查到!")
return (num)
}
alert("超出函数定义范围")
return (num)
}
}
function factorial(n) {
n = Math.abs(parseInt(n))
var fac = 1
for (; n > 0; n -= 1)
fac *= n
return (fac)
}
function dms(n) {
var neg = (n < 0)
with (Math) {
n = abs(n)
var d = floor(n)
var m = floor(60 * (n - d))
var s = (n - d) * 60 - m
}
var dms = d + m / 100 + s * 0.006
if (neg)
dms = -dms
return (dms)
}
function deg(n) {
var neg = (n < 0)
with (Math) {
n = abs(n)
var d = floor(n)
var m = floor((n - d) * 100)
var s = (n - d) * 100 - m
}
var deg = d + m / 60 + s / 36
if (neg)
deg = -deg
return (deg)
}
function degressToRadians(degress) {
return (degress * Math.PI / 180)
}
function radiansToDegress(radians) {
return (radians * 180 / Math.PI)
}
//界面
//-->
</SCRIPT>
<!--written by GoldHuman li hai--><!--2000.8-->
<META content="Microsoft FrontPage 12.0" name=GENERATOR></HEAD>
<BODY>
<DIV align=center>
<FORM name=calc>
<TABLE border=1 height=250 width=500>
<TBODY>
<TR>
<TD height=50>
<TABLE width=500>
<TBODY>
<TR>
<TD></TD>
<TD>
<DIV align=center><INPUT name=display readOnly size=40 value=0>
</DIV></TD></TR></TBODY></TABLE></TD></TR>
<TR>
<TD>
<TABLE width=500>
<TBODY>
<TR>
<TD width=290><INPUT name=carry onclick=inputChangCarry(16)
type=radio> 十六进制 <INPUT CHECKED name=carry
onclick=inputChangCarry(10) type=radio> 十进制 <INPUT name=carry
onclick=inputChangCarry(8) type=radio> 八进制 <INPUT name=carry
onclick=inputChangCarry(2) type=radio> 二进制 </TD>
<TD></TD>
<TD width=135><INPUT CHECKED name=angle
onclick="inputChangAngle('d')" type=radio value=d> 角度制 <INPUT
name=angle onclick="inputChangAngle('r')" type=radio value=r> 弧度制
</TD></TR></TBODY></TABLE>
<TABLE width=500>
<TBODY>
<TR>
<TD width=170><INPUT name=shiftf onclick=inputshift()
type=checkbox>上档功能 <INPUT name=hypf onclick=inputshift()
type=checkbox>双曲函数 </TD>
<TD><INPUT name=bracket readOnly size=3
style="BACKGROUND-COLOR: lightgrey"> <INPUT name=memory readOnly
size=3 style="BACKGROUND-COLOR: lightgrey"> <INPUT name=operator
readOnly size=3 style="BACKGROUND-COLOR: lightgrey"> </TD>
<TD width=183><INPUT onclick=backspace() style="COLOR: red" type=button value=" 退格 ">
<INPUT onclick="document.calc.display.value = 0 " style="COLOR: red" type=button value=" 清屏 ">
<INPUT onclick=clearall() style="COLOR: red" type=button value=" 全清">
</TD></TR></TBODY></TABLE>
<TABLE width=500>
<TBODY>
<TR>
<TD>
<TABLE>
<TBODY>
<TR align=middle>
<TD><INPUT name=pi onclick="inputfunction('pi','pi')" style="COLOR: blue" type=button value=" PI ">
</TD>
<TD><INPUT name=e onclick="inputfunction('e','e')" style="COLOR: blue" type=button value=" E ">
</TD>
<TD><INPUT name=bt onclick="inputfunction('dms','deg')" style="COLOR: #ff00ff" type=button value=d.ms>
</TD></TR>
<TR align=middle>
<TD><INPUT onclick=addbracket() style="COLOR: #ff00ff" type=button value=" ( ">
</TD>
<TD><INPUT onclick=disbracket() style="COLOR: #ff00ff" type=button value=" ) ">
</TD>
<TD><INPUT name=ln onclick="inputfunction('ln','exp')" style="COLOR: #ff00ff" type=button value=" ln ">
</TD></TR>
<TR align=middle>
<TD><INPUT name=sin onclick="inputtrig('sin','arcsin','hypsin','ahypsin')" style="COLOR: #ff00ff" type=button value="sin ">
</TD>
<TD><INPUT onclick="operation('^',7)" style="COLOR: #ff00ff" type=button value="x^y ">
</TD>
<TD><INPUT name=log onclick="inputfunction('log','expdec')" style="COLOR: #ff00ff" type=button value="log ">
</TD></TR>
<TR align=middle>
<TD><INPUT name=cos onclick="inputtrig('cos','arccos','hypcos','ahypcos')" style="COLOR: #ff00ff" type=button value="cos ">
</TD>
<TD><INPUT name=cube onclick="inputfunction('cube','cubt')" style="COLOR: #ff00ff" type=button value="x^3 ">
</TD>
<TD><INPUT onclick="inputfunction('!','!')" style="COLOR: #ff00ff" type=button value=" n! ">
</TD></TR>
<TR align=middle>
<TD><INPUT name=tan onclick="inputtrig('tan','arctan','hyptan','ahyptan')" style="COLOR: #ff00ff" type=button value="tan ">
</TD>
<TD><INPUT name=sqr onclick="inputfunction('sqr','sqrt')" style="COLOR: #ff00ff" type=button value="x^2 ">
</TD>
<TD><INPUT onclick="inputfunction('recip','recip')" style="COLOR: #ff00ff" type=button value="1/x ">
</TD></TR></TBODY></TABLE></TD>
<TD width=30></TD>
<TD>
<TABLE>
<TBODY>
<TR>
<TD><INPUT onclick=putmemory() style="COLOR: red" type=button value=" 储存 ">
</TD></TR>
<TR>
<TD><INPUT onclick=getmemory() style="COLOR: red" type=button value=" 取存 ">
</TD></TR>
<TR>
<TD><INPUT onclick=addmemory() style="COLOR: red" type=button value=" 累存 ">
</TD></TR>
<TR>
<TD><INPUT onclick=multimemory() style="COLOR: red" type=button value=" 积存 ">
</TD></TR>
<TR>
<TD height=33><INPUT onclick=clearmemory() style="COLOR: red" type=button value=" 清存 ">
</TD></TR></TBODY></TABLE></TD>
<TD width=30></TD>
<TD>
<TABLE>
<TBODY>
<TR align=middle>
<TD><INPUT name=k7 onclick="inputkey('7')" style="COLOR: blue" type=button value=" 7 ">
</TD>
<TD><INPUT name=k8 onclick="inputkey('8')" style="COLOR: blue" type=button value=" 8 ">
</TD>
<TD><INPUT name=k9 onclick="inputkey('9')" style="COLOR: blue" type=button value=" 9 ">
</TD>
<TD><INPUT onclick="operation('/',6)" style="COLOR: red" type=button value=" / ">
</TD>
<TD><INPUT onclick="operation('%',6)" style="COLOR: red" type=button value=取余>
</TD>
<TD><INPUT onclick="operation('&',3)" style="COLOR: red" type=button value=" 与 ">
</TD></TR>
<TR align=middle>
<TD><INPUT name=k4 onclick="inputkey('4')" style="COLOR: blue" type=button value=" 4 ">
</TD>
<TD><INPUT name=k5 onclick="inputkey('5')" style="COLOR: blue" type=button value=" 5 ">
</TD>
<TD><INPUT name=k6 onclick="inputkey('6')" style="COLOR: blue" type=button value=" 6 ">
</TD>
<TD><INPUT onclick="operation('*',6)" style="COLOR: red" type=button value=" * ">
</TD>
<TD><INPUT name=floor onclick="inputfunction('floor','deci')" style="COLOR: red" type=button value=取整>
</TD>
<TD><INPUT onclick="operation('|',1)" style="COLOR: red" type=button value=" 或 ">
</TD></TR>
<TR align=middle>
<TD><INPUT onclick="inputkey('1')" style="COLOR: blue" type=button value=" 1 ">
</TD>
<TD><INPUT name=k2 onclick="inputkey('2')" style="COLOR: blue" type=button value=" 2 ">
</TD>
<TD><INPUT name=k3 onclick="inputkey('3')" style="COLOR: blue" type=button value=" 3 ">
</TD>
<TD><INPUT onclick="operation('-',5)" style="COLOR: red" type=button value=" - ">
</TD>
<TD><INPUT onclick="operation('<',4)" style="COLOR: red" type=button value=左移>
</TD>
<TD><INPUT onclick="inputfunction('~','~')" style="COLOR: red" type=button value=" 非 ">
</TD></TR>
<TR align=middle>
<TD><INPUT onclick="inputkey('0')" style="COLOR: blue" type=button value=" 0 ">
</TD>
<TD><INPUT onclick=changeSign() style="COLOR: blue" type=button value=+/->
</TD>
<TD><INPUT name=kp onclick="inputkey('.')" style="COLOR: blue" type=button value=" . ">
</TD>
<TD><INPUT onclick="operation('+',5)" style="COLOR: red" type=button value=" + ">
</TD>
<TD><INPUT onclick=result() style="COLOR: red" type=button value=" = ">
</TD>
<TD><INPUT onclick="operation('x',2)" style="COLOR: red" type=button value=异或>
</TD></TR>
<TR align=middle>
<TD><INPUT disabled name=ka onclick="inputkey('a')" style="COLOR: blue" type=button value=" A ">
</TD>
<TD><INPUT disabled name=kb onclick="inputkey('b')" style="COLOR: blue" type=button value=" B ">
</TD>
<TD><INPUT disabled name=kc onclick="inputkey('c')" style="COLOR: blue" type=button value=" C ">
</TD>
<TD><INPUT disabled name=kd onclick="inputkey('d')" style="COLOR: blue" type=button value=" D ">
</TD>
<TD><INPUT disabled name=ke onclick="inputkey('e')" style="COLOR: blue" type=button value=" E">
</TD>
<TD><INPUT disabled name=kf onclick="inputkey('f')" style="COLOR: blue" type=button value=" F">
</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></FORM></DIV></BODY></HTML>
<HTML><HEAD><TITLE>科学计算器</TITLE>
<META content="text/html; charset=gb2312" http-equiv=Content-Type><!----><!--2000.8-->
<STYLE>BODY {
BACKGROUND-ATTACHMENT: fixed; BACKGROUND-COLOR: #edf0e1; COLOR: #0001fc; FONT-FAMILY: "宋体", "Arial", "Times New Roman"; FONT-SIZE: 9pt
}
TD {
FONT-FAMILY: "宋体", "Arial Narrow", "Times New Roman"; FONT-SIZE: 9pt; font-color: #000000
}
</STYLE>
<SCRIPT language=javascript>
<!--
var endNumber = true
var mem = 0
var carry = 10
var hexnum = "0123456789abcdef"
var angle = "d"
var stack = ""
var level = "0"
var layer = 0
//数字键
function inputkey(key) {
var index = key.charCodeAt(0);
if ((carry == 2 && (index == 48 || index == 49))
|| (carry == 8 && index >= 48 && index <= 55)
|| (carry == 10 && (index >= 48 && index <= 57 || index == 46))
|| (carry == 16 && ((index >= 48 && index <= 57) || (index >= 97 && index <= 102))))
if (endNumber) {
endNumber = false
document.calc.display.value = key
}
else if (document.calc.display.value == null || document.calc.display.value == "0")
document.calc.display.value = key
else
document.calc.display.value += key
}
function changeSign() {
if (document.calc.display.value != "0")
if (document.calc.display.value.substr(0, 1) == "-")
document.calc.display.value = document.calc.display.value.substr(1)
else
document.calc.display.value = "-" + document.calc.display.value
}
//函数键
function inputfunction(fun, shiftfun) {
endNumber = true
if (document.calc.shiftf.checked)
document.calc.display.value = decto(funcalc(shiftfun, (todec(document.calc.display.value, carry))), carry)
else
document.calc.display.value = decto(funcalc(fun, (todec(document.calc.display.value, carry))), carry)
document.calc.shiftf.checked = false
document.calc.hypf.checked = false
inputshift()
}
function inputtrig(trig, arctrig, hyp, archyp) {
if (document.calc.hypf.checked)
inputfunction(hyp, archyp)
else
inputfunction(trig, arctrig)
}
//运算符
function operation(join, newlevel) {
endNumber = true
var temp = stack.substr(stack.lastIndexOf("(") + 1) + document.calc.display.value
while (newlevel != 0 && (newlevel <= (level.charAt(level.length - 1)))) {
temp = parse(temp)
level = level.slice(0, -1)
}
if (temp.match(/^(.*\d[\+\-\*\/\%\^\&\|x])?([+-]?[0-9a-f\.]+)$/))
document.calc.display.value = RegExp.$2
stack = stack.substr(0, stack.lastIndexOf("(") + 1) + temp + join
document.calc.operator.value = " " + join + " "
level = level + newlevel
}
//括号
function addbracket() {
endNumber = true
document.calc.display.value = 0
stack = stack + "("
document.calc.operator.value = " "
level = level + 0
layer += 1
document.calc.bracket.value = "(=" + layer
}
function disbracket() {
endNumber = true
var temp = stack.substr(stack.lastIndexOf("(") + 1) + document.calc.display.value
while ((level.charAt(level.length - 1)) > 0) {
temp = parse(temp)
level = level.slice(0, -1)
}
document.calc.display.value = temp
stack = stack.substr(0, stack.lastIndexOf("("))
document.calc.operator.value = " "
level = level.slice(0, -1)
layer -= 1
if (layer > 0)
document.calc.bracket.value = "(=" + layer
else
document.calc.bracket.value = ""
}
//等号
function result() {
endNumber = true
while (layer > 0)
disbracket()
var temp = stack + document.calc.display.value
while ((level.charAt(level.length - 1)) > 0) {
temp = parse(temp)
level = level.slice(0, -1)
}
document.calc.display.value = temp
document.calc.bracket.value = ""
document.calc.operator.value = ""
stack = ""
level = "0"
}
//修改键
function backspace() {
if (!endNumber) {
if (document.calc.display.value.length > 1)
document.calc.display.value = document.calc.display.value.substring(0, document.calc.display.value.length - 1)
else
document.calc.display.value = 0
}
}
function clearall() {
document.calc.display.value = 0
endNumber = true
stack = ""
level = "0"
layer = ""
document.calc.operator.value = ""
document.calc.bracket.value = ""
}
//转换键
function inputChangCarry(newcarry) {
endNumber = true
document.calc.display.value = (decto(todec(document.calc.display.value, carry), newcarry))
carry = newcarry
document.calc.sin.disabled = (carry != 10)
document.calc.cos.disabled = (carry != 10)
document.calc.tan.disabled = (carry != 10)
document.calc.bt.disabled = (carry != 10)
document.calc.pi.disabled = (carry != 10)
document.calc.e.disabled = (carry != 10)
document.calc.kp.disabled = (carry != 10)
document.calc.k2.disabled = (carry <= 2)
document.calc.k3.disabled = (carry <= 2)
document.calc.k4.disabled = (carry <= 2)
document.calc.k5.disabled = (carry <= 2)
document.calc.k6.disabled = (carry <= 2)
document.calc.k7.disabled = (carry <= 2)
document.calc.k8.disabled = (carry <= 8)
document.calc.k9.disabled = (carry <= 8)
document.calc.ka.disabled = (carry <= 10)
document.calc.kb.disabled = (carry <= 10)
document.calc.kc.disabled = (carry <= 10)
document.calc.kd.disabled = (carry <= 10)
document.calc.ke.disabled = (carry <= 10)
document.calc.kf.disabled = (carry <= 10)
}
function inputChangAngle(angletype) {
endNumber = true
angle = angletype
if (angle == "d")
document.calc.display.value = radiansToDegress(document.calc.display.value)
else
document.calc.display.value = degressToRadians(document.calc.display.value)
endNumber = true
}
function inputshift() {
if (document.calc.shiftf.checked) {
document.calc.bt.value = "deg "
document.calc.ln.value = "exp "
document.calc.log.value = "expd"
if (document.calc.hypf.checked) {
document.calc.sin.value = "ahs "
document.calc.cos.value = "ahc "
document.calc.tan.value = "aht "
}
else {
document.calc.sin.value = "asin"
document.calc.cos.value = "acos"
document.calc.tan.value = "atan"
}
document.calc.sqr.value = "x^.5"
document.calc.cube.value = "x^.3"
document.calc.floor.value = "小数"
}
else {
document.calc.bt.value = "d.ms"
document.calc.ln.value = " ln "
document.calc.log.value = "log "
if (document.calc.hypf.checked) {
document.calc.sin.value = "hsin"
document.calc.cos.value = "hcos"
document.calc.tan.value = "htan"
}
else {
document.calc.sin.value = "sin "
document.calc.cos.value = "cos "
document.calc.tan.value = "tan "
}
document.calc.sqr.value = "x^2 "
document.calc.cube.value = "x^3 "
document.calc.floor.value = "取整"
}
}
//存储器部分
function clearmemory() {
mem = 0
document.calc.memory.value = " "
}
function getmemory() {
endNumber = true
document.calc.display.value = decto(mem, carry)
}
function putmemory() {
endNumber = true
if (document.calc.display.value != 0) {
mem = todec(document.calc.display.value, carry)
document.calc.memory.value = " M "
}
else
document.calc.memory.value = " "
}
function addmemory() {
endNumber = true
mem = parseFloat(mem) + parseFloat(todec(document.calc.display.value, carry))
if (mem == 0)
document.calc.memory.value = " "
else
document.calc.memory.value = " M "
}
function multimemory() {
endNumber = true
mem = parseFloat(mem) * parseFloat(todec(document.calc.display.value, carry))
if (mem == 0)
document.calc.memory.value = " "
else
document.calc.memory.value = " M "
}
//十进制转换
function todec(num, oldcarry) {
if (oldcarry == 10 || num == 0) return (num)
var neg = (num.charAt(0) == "-")
if (neg) num = num.substr(1)
var newnum = 0
for (var index = 1; index <= num.length; index++)
newnum = newnum * oldcarry + hexnum.indexOf(num.charAt(index - 1))
if (neg)
newnum = -newnum
return (newnum)
}
function decto(num, newcarry) {
var neg = (num < 0)
if (newcarry == 10 || num == 0) return (num)
num = "" + Math.abs(num)
var newnum = ""
while (num != 0) {
newnum = hexnum.charAt(num % newcarry) + newnum
num = Math.floor(num / newcarry)
}
if (neg)
newnum = "-" + newnum
return (newnum)
}
//表达式解析
function parse(string) {
if (string.match(/^(.*\d[\+\-\*\/\%\^\&\|x\<])?([+-]?[0-9a-f\.]+)([\+\-\*\/\%\^\&\|x\<])([+-]?[0-9a-f\.]+)$/))
return (RegExp.$1 + cypher(RegExp.$2, RegExp.$3, RegExp.$4))
else
return (string)
}
//数学运算和位运算
function cypher(left, join, right) {
left = todec(left, carry)
right = todec(right, carry)
if (join == "+")
return (decto(parseFloat(left) + parseFloat(right), carry))
if (join == "-")
return (decto(left - right, carry))
if (join == "*")
return (decto(left * right, carry))
if (join == "/" && right != 0)
return (decto(left / right, carry))
if (join == "%")
return (decto(left % right, carry))
if (join == "&")
return (decto(left & right, carry))
if (join == "|")
return (decto(left | right, carry))
if (join == "^")
return (decto(Math.pow(left, right), carry))
if (join == "x")
return (decto(left ^ right, carry))
if (join == "<")
return (decto(left << right, carry))
alert("除数不能为零")
return (left)
}
//函数计算
function funcalc(fun, num) {
with (Math) {
if (fun == "pi")
return (PI)
if (fun == "e")
return (E)
if (fun == "abs")
return (abs(num))
if (fun == "ceil")
return (ceil(num))
if (fun == "round")
return (round(num))
if (fun == "floor")
return (floor(num))
if (fun == "deci")
return (num - floor(num))
if (fun == "ln" && num > 0)
return (log(num))
if (fun == "exp")
return (exp(num))
if (fun == "log" && num > 0)
return (log(num) * LOG10E)
if (fun == "expdec")
return (pow(10, num))
if (fun == "cube")
return (num * num * num)
if (fun == "cubt")
return (pow(num, 1 / 3))
if (fun == "sqr")
return (num * num)
if (fun == "sqrt" && num >= 0)
return (sqrt(num))
if (fun == "!")
return (factorial(num))
if (fun == "recip" && num != 0)
return (1 / num)
if (fun == "dms")
return (dms(num))
if (fun == "deg")
return (deg(num))
if (fun == "~")
return (~num)
if (angle == "d") {
if (fun == "sin")
return (sin(degressToRadians(num)))
if (fun == "cos")
return (cos(degressToRadians(num)))
if (fun == "tan")
return (tan(degressToRadians(num)))
if (fun == "arcsin" && abs(num) <= 1)
return (radiansToDegress(asin(num)))
if (fun == "arccos" && abs(num) <= 1)
return (radiansToDegress(acos(num)))
if (fun == "arctan")
return (radiansToDegress(atan(num)))
}
else {
if (fun == "sin")
return (sin(num))
if (fun == "cos")
return (cos(num))
if (fun == "tan")
return (tan(num))
if (fun == "arcsin" && abs(num) <= 1)
return (asin(num))
if (fun == "arccos" && abs(num) <= 1)
return (acos(num))
if (fun == "arctan")
return (atan(num))
}
if (fun == "hypsin")
return ((exp(num) - exp(0 - num)) * 0.5)
if (fun == "hypcos")
return ((exp(num) + exp(-num)) * 0.5)
if (fun == "hyptan")
return ((exp(num) - exp(-num)) / (exp(num) + exp(-num)))
if (fun == "ahypsin" | fun == "hypcos" | fun == "hyptan") {
alert("对不起,公式还没有查到!")
return (num)
}
alert("超出函数定义范围")
return (num)
}
}
function factorial(n) {
n = Math.abs(parseInt(n))
var fac = 1
for (; n > 0; n -= 1)
fac *= n
return (fac)
}
function dms(n) {
var neg = (n < 0)
with (Math) {
n = abs(n)
var d = floor(n)
var m = floor(60 * (n - d))
var s = (n - d) * 60 - m
}
var dms = d + m / 100 + s * 0.006
if (neg)
dms = -dms
return (dms)
}
function deg(n) {
var neg = (n < 0)
with (Math) {
n = abs(n)
var d = floor(n)
var m = floor((n - d) * 100)
var s = (n - d) * 100 - m
}
var deg = d + m / 60 + s / 36
if (neg)
deg = -deg
return (deg)
}
function degressToRadians(degress) {
return (degress * Math.PI / 180)
}
function radiansToDegress(radians) {
return (radians * 180 / Math.PI)
}
//界面
//-->
</SCRIPT>
<!--written by GoldHuman li hai--><!--2000.8-->
<META content="Microsoft FrontPage 12.0" name=GENERATOR></HEAD>
<BODY>
<DIV align=center>
<FORM name=calc>
<TABLE border=1 height=250 width=500>
<TBODY>
<TR>
<TD height=50>
<TABLE width=500>
<TBODY>
<TR>
<TD></TD>
<TD>
<DIV align=center><INPUT name=display readOnly size=40 value=0>
</DIV></TD></TR></TBODY></TABLE></TD></TR>
<TR>
<TD>
<TABLE width=500>
<TBODY>
<TR>
<TD width=290><INPUT name=carry onclick=inputChangCarry(16)
type=radio> 十六进制 <INPUT CHECKED name=carry
onclick=inputChangCarry(10) type=radio> 十进制 <INPUT name=carry
onclick=inputChangCarry(8) type=radio> 八进制 <INPUT name=carry
onclick=inputChangCarry(2) type=radio> 二进制 </TD>
<TD></TD>
<TD width=135><INPUT CHECKED name=angle
onclick="inputChangAngle('d')" type=radio value=d> 角度制 <INPUT
name=angle onclick="inputChangAngle('r')" type=radio value=r> 弧度制
</TD></TR></TBODY></TABLE>
<TABLE width=500>
<TBODY>
<TR>
<TD width=170><INPUT name=shiftf onclick=inputshift()
type=checkbox>上档功能 <INPUT name=hypf onclick=inputshift()
type=checkbox>双曲函数 </TD>
<TD><INPUT name=bracket readOnly size=3
style="BACKGROUND-COLOR: lightgrey"> <INPUT name=memory readOnly
size=3 style="BACKGROUND-COLOR: lightgrey"> <INPUT name=operator
readOnly size=3 style="BACKGROUND-COLOR: lightgrey"> </TD>
<TD width=183><INPUT onclick=backspace() style="COLOR: red" type=button value=" 退格 ">
<INPUT onclick="document.calc.display.value = 0 " style="COLOR: red" type=button value=" 清屏 ">
<INPUT onclick=clearall() style="COLOR: red" type=button value=" 全清">
</TD></TR></TBODY></TABLE>
<TABLE width=500>
<TBODY>
<TR>
<TD>
<TABLE>
<TBODY>
<TR align=middle>
<TD><INPUT name=pi onclick="inputfunction('pi','pi')" style="COLOR: blue" type=button value=" PI ">
</TD>
<TD><INPUT name=e onclick="inputfunction('e','e')" style="COLOR: blue" type=button value=" E ">
</TD>
<TD><INPUT name=bt onclick="inputfunction('dms','deg')" style="COLOR: #ff00ff" type=button value=d.ms>
</TD></TR>
<TR align=middle>
<TD><INPUT onclick=addbracket() style="COLOR: #ff00ff" type=button value=" ( ">
</TD>
<TD><INPUT onclick=disbracket() style="COLOR: #ff00ff" type=button value=" ) ">
</TD>
<TD><INPUT name=ln onclick="inputfunction('ln','exp')" style="COLOR: #ff00ff" type=button value=" ln ">
</TD></TR>
<TR align=middle>
<TD><INPUT name=sin onclick="inputtrig('sin','arcsin','hypsin','ahypsin')" style="COLOR: #ff00ff" type=button value="sin ">
</TD>
<TD><INPUT onclick="operation('^',7)" style="COLOR: #ff00ff" type=button value="x^y ">
</TD>
<TD><INPUT name=log onclick="inputfunction('log','expdec')" style="COLOR: #ff00ff" type=button value="log ">
</TD></TR>
<TR align=middle>
<TD><INPUT name=cos onclick="inputtrig('cos','arccos','hypcos','ahypcos')" style="COLOR: #ff00ff" type=button value="cos ">
</TD>
<TD><INPUT name=cube onclick="inputfunction('cube','cubt')" style="COLOR: #ff00ff" type=button value="x^3 ">
</TD>
<TD><INPUT onclick="inputfunction('!','!')" style="COLOR: #ff00ff" type=button value=" n! ">
</TD></TR>
<TR align=middle>
<TD><INPUT name=tan onclick="inputtrig('tan','arctan','hyptan','ahyptan')" style="COLOR: #ff00ff" type=button value="tan ">
</TD>
<TD><INPUT name=sqr onclick="inputfunction('sqr','sqrt')" style="COLOR: #ff00ff" type=button value="x^2 ">
</TD>
<TD><INPUT onclick="inputfunction('recip','recip')" style="COLOR: #ff00ff" type=button value="1/x ">
</TD></TR></TBODY></TABLE></TD>
<TD width=30></TD>
<TD>
<TABLE>
<TBODY>
<TR>
<TD><INPUT onclick=putmemory() style="COLOR: red" type=button value=" 储存 ">
</TD></TR>
<TR>
<TD><INPUT onclick=getmemory() style="COLOR: red" type=button value=" 取存 ">
</TD></TR>
<TR>
<TD><INPUT onclick=addmemory() style="COLOR: red" type=button value=" 累存 ">
</TD></TR>
<TR>
<TD><INPUT onclick=multimemory() style="COLOR: red" type=button value=" 积存 ">
</TD></TR>
<TR>
<TD height=33><INPUT onclick=clearmemory() style="COLOR: red" type=button value=" 清存 ">
</TD></TR></TBODY></TABLE></TD>
<TD width=30></TD>
<TD>
<TABLE>
<TBODY>
<TR align=middle>
<TD><INPUT name=k7 onclick="inputkey('7')" style="COLOR: blue" type=button value=" 7 ">
</TD>
<TD><INPUT name=k8 onclick="inputkey('8')" style="COLOR: blue" type=button value=" 8 ">
</TD>
<TD><INPUT name=k9 onclick="inputkey('9')" style="COLOR: blue" type=button value=" 9 ">
</TD>
<TD><INPUT onclick="operation('/',6)" style="COLOR: red" type=button value=" / ">
</TD>
<TD><INPUT onclick="operation('%',6)" style="COLOR: red" type=button value=取余>
</TD>
<TD><INPUT onclick="operation('&',3)" style="COLOR: red" type=button value=" 与 ">
</TD></TR>
<TR align=middle>
<TD><INPUT name=k4 onclick="inputkey('4')" style="COLOR: blue" type=button value=" 4 ">
</TD>
<TD><INPUT name=k5 onclick="inputkey('5')" style="COLOR: blue" type=button value=" 5 ">
</TD>
<TD><INPUT name=k6 onclick="inputkey('6')" style="COLOR: blue" type=button value=" 6 ">
</TD>
<TD><INPUT onclick="operation('*',6)" style="COLOR: red" type=button value=" * ">
</TD>
<TD><INPUT name=floor onclick="inputfunction('floor','deci')" style="COLOR: red" type=button value=取整>
</TD>
<TD><INPUT onclick="operation('|',1)" style="COLOR: red" type=button value=" 或 ">
</TD></TR>
<TR align=middle>
<TD><INPUT onclick="inputkey('1')" style="COLOR: blue" type=button value=" 1 ">
</TD>
<TD><INPUT name=k2 onclick="inputkey('2')" style="COLOR: blue" type=button value=" 2 ">
</TD>
<TD><INPUT name=k3 onclick="inputkey('3')" style="COLOR: blue" type=button value=" 3 ">
</TD>
<TD><INPUT onclick="operation('-',5)" style="COLOR: red" type=button value=" - ">
</TD>
<TD><INPUT onclick="operation('<',4)" style="COLOR: red" type=button value=左移>
</TD>
<TD><INPUT onclick="inputfunction('~','~')" style="COLOR: red" type=button value=" 非 ">
</TD></TR>
<TR align=middle>
<TD><INPUT onclick="inputkey('0')" style="COLOR: blue" type=button value=" 0 ">
</TD>
<TD><INPUT onclick=changeSign() style="COLOR: blue" type=button value=+/->
</TD>
<TD><INPUT name=kp onclick="inputkey('.')" style="COLOR: blue" type=button value=" . ">
</TD>
<TD><INPUT onclick="operation('+',5)" style="COLOR: red" type=button value=" + ">
</TD>
<TD><INPUT onclick=result() style="COLOR: red" type=button value=" = ">
</TD>
<TD><INPUT onclick="operation('x',2)" style="COLOR: red" type=button value=异或>
</TD></TR>
<TR align=middle>
<TD><INPUT disabled name=ka onclick="inputkey('a')" style="COLOR: blue" type=button value=" A ">
</TD>
<TD><INPUT disabled name=kb onclick="inputkey('b')" style="COLOR: blue" type=button value=" B ">
</TD>
<TD><INPUT disabled name=kc onclick="inputkey('c')" style="COLOR: blue" type=button value=" C ">
</TD>
<TD><INPUT disabled name=kd onclick="inputkey('d')" style="COLOR: blue" type=button value=" D ">
</TD>
<TD><INPUT disabled name=ke onclick="inputkey('e')" style="COLOR: blue" type=button value=" E">
</TD>
<TD><INPUT disabled name=kf onclick="inputkey('f')" style="COLOR: blue" type=button value=" F">
</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></FORM></DIV></BODY></HTML>