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1.本頁效果圖片

2.美化后的效果

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head>  <style> #main{ width:100%; height:100%; } #inputs{ position:relative; top:50%; left:50%; } .inbutton{ width:30px; } .outbutton{ width:145px; text-align:right; } .tcenter{ text-align:center; } </style> </head> <body>   <span id="srccaef2p0j"    class="outbutton tcenter">etongchina@gmail.com</span>   <span><input id="output" type="text" class="outbutton" maxlength="9" value="." /></span>   <span><input type="button" class="inbutton" value="7" onclick="commonMath.getValue(this.value)" /></span> <span><input type="button" class="inbutton" value="8" onclick="commonMath.getValue(this.value)" /></span> <span><input type="button" class="inbutton" value="9" onclick="commonMath.getValue(this.value)" /></span> <span><input type="button" class="inbutton" value="+" onclick="commonMath.getValue(this.value)" /></span>   <span><input type="button" class="inbutton" value="4" onclick="commonMath.getValue(this.value);" /></span> <span><input type="button" class="inbutton" value="5" onclick="commonMath.getValue(this.value);" /></span> <span><input type="button" class="inbutton" value="6" onclick="commonMath.getValue(this.value);" /></span> <span><input type="button" class="inbutton" value="-" onclick="commonMath.getValue(this.value);" /></span>   <span><input type="button" class="inbutton" value="1" onclick="commonMath.getValue(this.value);" /></span> <span><input type="button" class="inbutton" value="2" onclick="commonMath.getValue(this.value);" /></span> <span><input type="button" class="inbutton" value="3" onclick="commonMath.getValue(this.value);" /></span> <span><input type="button" class="inbutton" value="*" onclick="commonMath.getValue(this.value);" /></span>   <span><input type="button" class="inbutton" value="0" onclick="commonMath.getValue(this.value);" /></span> <span><input type="button" class="inbutton" value="+/-" onclick="commonMath.getValue(this.value);" /></span> <span><input type="button" class="inbutton" value="." onclick="commonMath.getValue(this.value);" /></span> <span><input type="button" class="inbutton" value="/" onclick="commonMath.getValue(this.value);" /></span>   <span><input type="button" class="outbutton tcenter" value="計(jì)算" onclick="commonMath.getValue('=');" /></span>   </body> </html>

[Ctrl+A 全選注:如需引入外部Js需刷新才能執(zhí)行]

JavaScript技術(shù)：用JS寫的簡單的計(jì)算器實(shí)現(xiàn)代碼，轉(zhuǎn)載需保留來源！

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用JS寫的簡單的計(jì)算器實(shí)現(xiàn)代碼

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