简单的计算器解决办法
日期：2014-05-18 浏览次数：20684 次
简单的计算器
这是个再简单不过的WEB计算器了：
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
<title> 简单计算器 </title>
<script language= "javascript ">
var x,y,z;
function calc(x,string)
{
document.myform.display.value=x+string;
}
function calcend(str)
{
document.myform.display.value=eval(str);
}
function clears()
{
document.myform.display.value= " ";
}
</script>
</head>
<body>
<form name= "myform ">
<table bgcolor= "#999999 " align= "center " style= "font-size:14px " width= "180 " height= "220 "border= "1 " bordercolor= "#00FF99 ">
<caption align= "center "> <h1> 计算器 </h1> </caption>
<tr>
<td colspan= "2 "> <input type= "text " name= "display " style= "font: '楷体_GB2312 ';height:35px " maxlength= "25 "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "clear " value= "C " onClick= "clears() "> </td>
</tr>
<tr align= "center ">
<td> <input style= " font-size:28px;width:40;height:40; " type= "button " name= "1 " value= "1 " onClick= "calc(this.form.display.value, '1 ') "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "2 " value= "2 " onClick= "calc(this.form.display.value, '2 ') "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "3 " value= "3 " onClick= "calc(this.form.display.value, '3 ') "> </td>
</tr>
<tr align= "center ">
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "4 " value= "4 " onClick= "calc(this.form.display.value, '4 ') "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "5 " value= "5 " onClick= "calc(this.form.display.value, '5 ') "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "6 " value= "6 " onClick= "calc(this.form.display.value, '6 ') "> </td>
</tr>
<tr align= "center ">
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "7 " value= "7 " onClick= "calc(this.form.display.value, '7 ') "> </td>
<td> <input style= "font-size:28px;width
这是个再简单不过的WEB计算器了：
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
<title> 简单计算器 </title>
<script language= "javascript ">
var x,y,z;
function calc(x,string)
{
document.myform.display.value=x+string;
}
function calcend(str)
{
document.myform.display.value=eval(str);
}
function clears()
{
document.myform.display.value= " ";
}
</script>
</head>
<body>
<form name= "myform ">
<table bgcolor= "#999999 " align= "center " style= "font-size:14px " width= "180 " height= "220 "border= "1 " bordercolor= "#00FF99 ">
<caption align= "center "> <h1> 计算器 </h1> </caption>
<tr>
<td colspan= "2 "> <input type= "text " name= "display " style= "font: '楷体_GB2312 ';height:35px " maxlength= "25 "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "clear " value= "C " onClick= "clears() "> </td>
</tr>
<tr align= "center ">
<td> <input style= " font-size:28px;width:40;height:40; " type= "button " name= "1 " value= "1 " onClick= "calc(this.form.display.value, '1 ') "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "2 " value= "2 " onClick= "calc(this.form.display.value, '2 ') "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "3 " value= "3 " onClick= "calc(this.form.display.value, '3 ') "> </td>
</tr>
<tr align= "center ">
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "4 " value= "4 " onClick= "calc(this.form.display.value, '4 ') "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "5 " value= "5 " onClick= "calc(this.form.display.value, '5 ') "> </td>
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "6 " value= "6 " onClick= "calc(this.form.display.value, '6 ') "> </td>
</tr>
<tr align= "center ">
<td> <input style= "font-size:28px;width:40;height:40; " type= "button " name= "7 " value= "7 " onClick= "calc(this.form.display.value, '7 ') "> </td>
<td> <input style= "font-size:28px;width
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