想在你的网页上有一个计算器吗？从下面复制此模板开始。如果有广告的话，你可能需要将代码复制粘贴到两个部分。你不想复制和粘贴广告和它周围的代码。然后将HTML代码粘贴到HTML编辑器中。

复制并粘贴计算器的javasript

将此代码放在页面的标题中。从这里开始复制：

<STYLE type="text;css">.calcBtn{font-weight : bold/width: 32px;height: 32px;}</style><script language="JavaScript">function Calculator_OnClick(keyStr){var resultsField = document.calculator.calcResults;switch (keyStr){case "0":case "1":case "2":case "3":case "4":case "5":case "6":case "7":case "8":case "9":case "0":case ".":if ((this.lastOp==this.opClear) || (this.lastOp==this.opOperator)){resultsField.value = keyStr;}else{// ignore extra decimalsif ((keyStr!=".") || (resultsField.value.indexOf(".")<0)){resultsField.value += keyStr;}}this.lastOp = this.opNumber;break;case "*":case "/":case "+":case "-":if (this.lastOp==this.opNumber)this.Calc();this.evalStr += resultsField.value + keyStr;this.lastOp = this.opOperator;break;case "=":this.Calc();this.lastOp = this.opClear;break;case "c":resultsField.value = "0";this.lastOp = this.opClear;break;default:alert("'" + keyStr + "' not recognized.");}}function Calculator_Calc(){var resultsField = document.calculator.calcResults;//alert("eval:"+this.evalStr+resultsField.value);resultsField.value = eval(this.evalStr+resultsField.value);this.evalStr = "";}function Calculator(){this.evalStr = "";this.opNumber = 0;this.opOperator = 1;this.opClear = 2;this.lastOp = this.opClear;this.OnClick = Calculator_OnClick;this.Calc = Calculator_Calc;}gCalculator = new Calculator();</script>-------------------------------------------------------------------------------

将此部分放在页面正文中。开始在此处复制此部分：

<form name="calculator"><table border="2" cellpadding="4" cellspacing="0" bordercolor="#000000"><tr><td><table border="0" cellpadding="2" cellspacing="0" width="100%"><tr><td colspan="4"><input type="text" name="calcResults" value="0" size="20" style="text-align: right"></td></tr><tr><td><input class="calcBtn" type="button" value=" C " name="calclear" onclick="gCalculator.OnClick('c')"></td><td></td><td> </td><td><input class="calcBtn" type="button" value=" = " name="calequal" onclick="gCalculator.OnClick('=')"></td></tr><tr><td><input class="calcBtn" type="button" value=" 7 " name="cal7" onclick="gCalculator.OnClick('7')" ondblclick="gCalculator.OnClick('7')"></td><td><input class="calcBtn" type="button" value=" 8 " name="cal8" onclick="gCalculator.OnClick('8')" ondblclick="gCalculator.OnClick('8')"> </td><td><input class="calcBtn" type="button" value=" 9 " name="cal9" onclick="gCalculator.OnClick('9')" ondblclick="gCalculator.OnClick('9')"> </td><td><input class="calcBtn" type="button" value=" / " name="caldiv" onclick="gCalculator.OnClick('/')"></td></tr><tr><td><input class="calcBtn" type="button" value=" 4 " name="cal4" onclick="gCalculator.OnClick('4')" ondblclick="gCalculator.OnClick('4')"> </td><td><input class="calcBtn" type="button" value=" 5 " name="cal5" onclick="gCalculator.OnClick('5')" ondblclick="gCalculator.OnClick('5')"> </td><td><input class="calcBtn" type="button" value=" 6 " name="cal6" onclick="gCalculator.OnClick('6')" ondblclick="gCalculator.OnClick('6')"> </td><td><input class="calcBtn" type="button" value=" * " name="calmul" onclick="gCalculator.OnClick('*')"></td></tr><tr><td><input class="calcBtn" type="button" value=" 1 " name="cal1" onclick="gCalculator.OnClick('1')" ondblclick="gCalculator.OnClick('1')"> </td><td><input class="calcBtn" type="button" value=" 2 " name="cal2" onclick="gCalculator.OnClick('2')" ondblclick="gCalculator.OnClick('2')"> </td><td><input class="calcBtn" type="button" value=" 3 " name="cal3" onclick="gCalculator.OnClick('3')" ondblclick="gCalculator.OnClick('3')"> </td><td><input class="calcBtn" type="button" value=" + " name="calplus" onclick="gCalculator.OnClick('+')"></td></tr><tr><td> </td><td><input class="calcBtn" type="button" value=" 0 " name="cal0" onclick="gCalculator.OnClick('0')" ondblclick="gCalculator.OnClick('0')"> </td><td><input class="calcBtn" type="button" value=" . " name="caldec" onclick="gCalculator.OnClick('.')"></td><td><input class="calcBtn" type="button" value=" - " name="calminus" onclick="gCalculator.OnClick('-')"></td></tr></table></td></tr></table></form>