Jascript 的计算器插件
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Jascript 的计算器插件
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head> <title>科学计算器</title> <meta content="text/html; charset=gb2312" http-equiv="Content-Type"> <!--written by GoldHuman li hai--> <!--2000.8--> <style> .buttons table input { width: 50px; } </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 name="GENERATOR" content="MSHTML 8.00.6001.18702"></head><body> <div align="center"> <form name="calc"> <table border="1" width="500" height="250"> <tbody> <tr> <td height="50"> <table width="500"> <tbody> <tr> <td></td> <td> <div align="center"> <input value="0" readonly size="40" name="display"> </div> </td> </tr> </tbody> </table> </td> </tr> <tr> <td> <table width="500"> <tbody> <tr> <td width="290"> <input onclick="inputChangCarry(16)" type="radio" name="carry"> 十六进制 <input onclick="inputChangCarry(10)" checked type="radio" name="carry"> 十进制 <input onclick="inputChangCarry(8)" type="radio" name="carry"> 八进制 <input onclick="inputChangCarry(2)" type="radio" name="carry"> 二进制 </td> <td></td> <td width="135"> <input onclick="inputChangAngle('d')" value="d" checked type="radio" name="angle"> 角度制 <input onclick="inputChangAngle('r')" value="r" type="radio" name="angle"> 弧度制 </td> </tr> </tbody> </table> <table width="500"> <tbody> <tr> <td width="170"> <input onclick="inputshift()" type="checkbox" name="shiftf">上档功能 <input onclick="inputshift()" type="checkbox" name="hypf">双曲函数 </td> <td> <input style="background-color: lightgrey" readonly size="3" name="bracket"> <input style="background-color: lightgrey" readonly size="3" name="memory"> <input style="background-color: lightgrey" readonly size="3" name="operator"> </td> <td width="183"> <input style="color: red" onclick="backspace()" value=" 退格 " type="button"> <input style="color: red" onclick="document.calc.display.value = 0 " value=" 清屏 " type="button"> <input style="color: red" onclick="clearall()" value=" 全清" type="button"> </td> </tr> </tbody> </table> <table class="buttons" width="500"> <tbody> <tr> <td> <table> <tbody> <tr align="middle"> <td> <input style="color: blue" onclick="inputfunction('pi', 'pi')" value=" PI " type="button" name="pi"> </td> <td> <input style="color: blue" onclick="inputfunction('e', 'e')" value=" E " type="button" name="e"> </td> <td> <input style="color: #ff00ff" onclick="inputfunction('dms', 'deg')" value="d.ms" type="button" name="bt"> </td> </tr> <tr align="middle"> <td> <input style="color: #ff00ff" onclick="addbracket()" value=" ( " type="button"> </td> <td> <input style="color: #ff00ff" onclick="disbracket()" value=" ) " type="button"> </td> <td> <input style="color: #ff00ff" onclick="inputfunction('ln', 'exp')" value=" ln " type="button" name="ln"> </td> </tr> <tr align="middle"> <td> <input style="color: #ff00ff" onclick="inputtrig('sin', 'arcsin', 'hypsin', 'ahypsin')" value="sin " type="button" name="sin"> </td> <td> <input style="color: #ff00ff" onclick="operation('^', 7)" value="x^y " type="button"> </td> <td> <input style="color: #ff00ff" onclick="inputfunction('log', 'expdec')" value="log " type="button" name="log"> </td> </tr> <tr align="middle"> <td> <input style="color: #ff00ff" onclick="inputtrig('cos', 'arccos', 'hypcos', 'ahypcos')" value="cos " type="button" name="cos"> </td> <td> <input style="color: #ff00ff" onclick="inputfunction('cube', 'cubt')" value="x^3 " type="button" name="cube"> </td> <td> <input style="color: #ff00ff" onclick="inputfunction('!', '!')" value=" n! " type="button"> </td> </tr> <tr align="middle"> <td> <input style="color: #ff00ff" onclick="inputtrig('tan', 'arctan', 'hyptan', 'ahyptan')" value="tan " type="button" name="tan"> </td> <td> <input style="color: #ff00ff" onclick="inputfunction('sqr', 'sqrt')" value="x^2 " type="button" name="sqr"> </td> <td> <input style="color: #ff00ff" onclick="inputfunction('recip', 'recip')" value="1/x " type="button"> </td> </tr> </tbody> </table> </td> <td width="30"></td> <td> <table> <tbody> <tr> <td> <input style="color: red" onclick="putmemory()" value=" 储存 " type="button"> </td> </tr> <tr> <td> <input style="color: red" onclick="getmemory()" value=" 取存 " type="button"> </td> </tr> <tr> <td> <input style="color: red" onclick="addmemory()" value=" 累存 " type="button"> </td> </tr> <tr> <td> <input style="color: red" onclick="multimemory()" value=" 积存 " type="button"> </td> </tr> <tr> <td height="33"> <input style="color: red" onclick="clearmemory()" value=" 清存 " type="button"> </td> </tr> </tbody> </table> </td> <td width="30"></td> <td> <table> <tbody> <tr align="middle"> <td> <input style="color: blue" onclick="inputkey('7')" value=" 7 " type="button" name="k7"> </td> <td> <input style="color: blue" onclick="inputkey('8')" value=" 8 " type="button" name="k8"> </td> <td> <input style="color: blue" onclick="inputkey('9')" value=" 9 " type="button" name="k9"> </td> <td> <input style="color: red" onclick="operation('/', 6)" value=" / " type="button"> </td> <td> <input style="color: red" onclick="operation('%', 6)" value="取余" type="button"> </td> <td> <input style="color: red" onclick="operation('&', 3)" value=" 与 " type="button"> </td> </tr> <tr align="middle"> <td> <input style="color: blue" onclick="inputkey('4')" value=" 4 " type="button" name="k4"> </td> <td> <input style="color: blue" onclick="inputkey('5')" value=" 5 " type="button" name="k5"> </td> <td> <input style="color: blue" onclick="inputkey('6')" value=" 6 " type="button" name="k6"> </td> <td> <input style="color: red" onclick="operation('*', 6)" value=" * " type="button"> </td> <td> <input style="color: red" onclick="inputfunction('floor', 'deci')" value="取整" type="button" name="floor"> </td> <td> <input style="color: red" onclick="operation('|', 1)" value=" 或 " type="button"> </td> </tr> <tr align="middle"> <td> <input style="color: blue" onclick="inputkey('1')" value=" 1 " type="button"> </td> <td> <input style="color: blue" onclick="inputkey('2')" value=" 2 " type="button" name="k2"> </td> <td> <input style="color: blue" onclick="inputkey('3')" value=" 3 " type="button" name="k3"> </td> <td> <input style="color: red" onclick="operation('-', 5)" value=" - " type="button"> </td> <td> <input style="color: red" onclick="operation('<', 4)" value="左移" type="button"> </td> <td> <input style="color: red" onclick="inputfunction('~', '~')" value=" 非 " type="button"> </td> </tr> <tr align="middle"> <td> <input style="color: blue" onclick="inputkey('0')" value=" 0 " type="button"> </td> <td> <input style="color: blue" onclick="changeSign()" value="+/-" type="button"> </td> <td> <input style="color: blue" onclick="inputkey('.')" value=" . " type="button" name="kp"> </td> <td> <input style="color: red" onclick="operation('+', 5)" value=" + " type="button"> </td> <td> <input style="color: red" onclick="result()" value=" ＝ " type="button"> </td> <td> <input style="color: red" onclick="operation('x', 2)" value="异或" type="button"> </td> </tr> <tr align="middle"> <td> <input style="color: blue" disabled onclick="inputkey('a')" value=" A " type="button" name="ka"> </td> <td> <input style="color: blue" disabled onclick="inputkey('b')" value=" B " type="button" name="kb"> </td> <td> <input style="color: blue" disabled onclick="inputkey('c')" value=" C " type="button" name="kc"> </td> <td> <input style="color: blue" disabled onclick="inputkey('d')" value=" D " type="button" name="kd"> </td> <td> <input style="color: blue" disabled onclick="inputkey('e')" value=" E " type="button" name="ke"> </td> <td> <input style="color: blue" disabled onclick="inputkey('f')" value=" F " type="button" name="kf"> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </form> </div></body></html> 0 0
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