提示：您可以先修改部分代碼再運行
<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title> WINDOWS式樣的計算機</title><style type="text/css"><!--body {font-family: helvetica}p {font-size: 12pt}.red {color: red}.blue {color: blue}--></style><SCRIPT LANGUAGE="JavaScript"><!-- Beginvar Memory = 0;var Number1 = "";var Number2 = "";var NewNumber = "blank";var opvalue = "";function Display(displaynumber) {document.calculator.answer.value = displaynumber;}function MemoryClear() {Memory = 0;document.calculator.mem.value = "";}function MemoryRecall(answer) {if(NewNumber != "blank") {Number2 += answer;} else {Number1 = answer;}NewNumber = "blank";Display(answer);}function MemorySubtract(answer) {Memory = Memory - eval(answer);}function MemoryAdd(answer) {Memory = Memory + eval(answer);document.calculator.mem.value = " M ";NewNumber = "blank";}function ClearCalc() {Number1 = "";Number2 = "";NewNumber = "blank";Display("");}function Backspace(answer) {answerlength = answer.length;answer = answer.substring(0, answerlength - 1);if (Number2 != "") {Number2 = answer.toString();Display(Number2);} else {Number1 = answer.toString();Display(Number1); }}function CECalc() {Number2 = "";NewNumber = "yes";Display("");}function CheckNumber(answer) {if(answer == ".") {Number = document.calculator.answer.value;if(Number.indexOf(".") != -1) {answer = ""; }}if(NewNumber == "yes") {Number2 += answer;Display(Number2);}else {if(NewNumber == "blank") {Number1 = answer;Number2 = "";NewNumber = "no";}else {Number1 += answer;}Display(Number1); }}function AddButton(x) {if(x == 1) EqualButton();if(Number2 != "") {Number1 = parseFloat(Number1) + parseFloat(Number2);}NewNumber = "yes";opvalue = '+';Display(Number1);}function SubButton(x) {if(x == 1) EqualButton();if(Number2 != "") {Number1 = parseFloat(Number1) - parseFloat(Number2);}NewNumber = "yes";opvalue = '-';Display(Number1);}function MultButton(x) {if(x == 1) EqualButton();if(Number2 != "") {Number1 = parseFloat(Number1) * parseFloat(Number2);}NewNumber = "yes";opvalue = '*';Display(Number1);}function DivButton(x) {if(x == 1) EqualButton();if(Number2 != "") {Number1 = parseFloat(Number1) / parseFloat(Number2);}NewNumber = "yes";opvalue = '/';Display(Number1);}function SqrtButton() {Number1 = Math.sqrt(Number1);NewNumber = "blank";Display(Number1);}function PercentButton() {if(NewNumber != "blank") {Number2 *= .01;NewNumber = "blank";Display(Number2); }}function RecipButton() {Number1 = 1/Number1;NewNumber = "blank";Display(Number1);}function NegateButton() {Number1 = parseFloat(-Number1);NewNumber = "no";Display(Number1);}function EqualButton() {if(opvalue == '+') AddButton(0);if(opvalue == '-') SubButton(0);if(opvalue == '*') MultButton(0);if(opvalue == '/') DivButton(0);Number2 = "";opvalue = "";}// End --></script></head><body><center><form name="calculator"><table bgcolor="#aaaaaa" width=220><tr><td><table bgcolor="#cccccc" border=1><tr><td><table border=0 cellpadding=0><tr> <td bgcolor="#000080"> <div align="center"><b >JavaScript Fairyland</b></div> </td> </tr><tr><td><table width="100%" border=0><tr><td colspan=6><input type="text" name="answer" size=30 maxlength=30 onChange="CheckNumber(this.value)"></td></tr><tr><td colspan=6><table border=0 cellpadding=0><tr><td><input type="text" name="mem" size=3 maxlength=3> <input type="button" name="backspace" class="red" value="Backspace" onClick="Backspace(document.calculator.answer.value); return false;"> <input type="button" name="CE" class="red" value=" CE " onClick="CECalc(); return false;"> <input type="reset" name="C" class="red" value=" C " onClick="ClearCalc(); return false;"></td></tr></table></td></tr><tr><td><input type="button" name="MC" class="red" value=" MC " onClick="MemoryClear(); return false;"></td><td><input type="button" name="calc7" class="blue" value=" 7 " onClick="CheckNumber('7'); return false;"></td><td><input type="button" name="calc8" class="blue" value=" 8 " onClick="CheckNumber('8'); return false;"></td><td><input type="button" name="calc9" class="blue" value=" 9 " onClick="CheckNumber('9'); return false;"></td><td><input type="button" name="divide" class="red" value=" / " onClick="DivButton(1); return false;"></td><td><input type="button" name="sqrt" class="blue" value="sqrt" onClick="SqrtButton(); return false;"></td></tr><tr><td><input type="button" name="MR" class="red" value=" MR " onClick="MemoryRecall(Memory); return false;"></td><td><input type="button" name="calc4" class="blue" value=" 4 " onClick="CheckNumber('4'); return false;"></td><td><input type="button" name="calc5" class="blue" value=" 5 " onClick="CheckNumber('5'); return false;"></td><td><input type="button" name="calc6" class="blue" value=" 6 " onClick="CheckNumber('6'); return false;"></td><td><input type="button" name="multiply" class="red" value=" * " onClick="MultButton(1); return false;"></td><td><input type="button" name="percent" class="blue" value=" % " onClick="PercentButton(); return false;"></td></tr><tr><td><input type="button" name="MS" class="red" value=" MS " onClick="MemorySubtract(document.calculator.answer.value); return false;"></td><td><input type="button" name="calc1" class="blue" value=" 1 " onClick="CheckNumber('1'); return false;"></td><td><input type="button" name="calc2" class="blue" value=" 2 " onClick="CheckNumber('2'); return false;"></td><td><input type="button" name="calc3" class="blue" value=" 3 " onClick="CheckNumber('3'); return false;"></td><td><input type="button" name="minus" class="red" value=" - " onClick="SubButton(1); return false;"></td><td><input type="button" name="recip" class="blue" value="1/x " onClick="RecipButton(); return false;"></td></tr><tr><td><input type="button" name="Mplus" class="red" value=" M+ " onClick="MemoryAdd(document.calculator.answer.value); return false;"></td><td><input type="button" name="calc0" class="blue" value=" 0 " onClick="CheckNumber('0'); return false;"></td><td><input type="button" name="negate" class="blue" value="+/- " onClick="NegateButton(); return false;"></td><td><input type="button" name="dot" class="blue" value=" . " onClick="CheckNumber('.'); return false;"></td><td><input type="button" name="plus" class="red" value=" + " onClick="AddButton(1); return false;"></td><td><input type="button" name="equal" class="red" value=" = " onClick="EqualButton(); return false;"></td></tr></table></td></tr></table></td></tr></table></td></tr></table></form></center></body></html>
提示：您可以先修改部分代碼再運行
