实现过程： HTML+Css+JS 具体通过标签实现计算器整个的框架 通过Css样式实现计算器页面布局及框架优化 通过JavaScript+算法实现计算器计算过程
次实验过程： 背景图片+背景音乐（看个人意愿加！）
安排：
<!--HTML源码页-->
<head>
<link rel="icon" href="猫.png
">
<title>
简易计算器
</title>
</head>
<body background="5-121106095005.gif"
</body>
<h2><p align="center">此工具由白猫制作完成!</p></h2>
<link href="计算器.css
" rel="stylesheet" type="text/css" />
<script src="计算器.js
"></script>
<table id="calculater" onClick="calculater()">
<tr>
<td id="display" colspan="5">0</td>
</tr>
<tr>
<td class="numberkey" >1</td>
<td class="numberkey" >2</td>
<td class="numberkey" >3</td>
<td class="numberkey" >+</td>
<td class="numberkey" id="deletesign"><a rel="nofollow" href="计算器.htm" class="item">归零</a></td>
</tr>
<tr>
<td class="numberkey" >4</td>
<td class="numberkey" >5</td>
<td class="numberkey" >6</td>
<td class="numberkey" >-</td>
<td rowspan="3" id="equality" onclick="resultscalcaulte()">=</td>
</tr>
<tr>
<td class="numberkey" >7</td>
<td class="numberkey" >8</td>
<td class="numberkey" >9</td>
<td class="numberkey" >*</td>
</tr>
<tr >
<td class="numberkey" >+/-</td>
<td class="numberkey" >0</td>
<td class="numberkey" >.</td>
<td class="numberkey" >/</td>
</tr>
<script>
alert("手把手教你制作简易计算器！")
</script>
/*CSS样式源码页*/
*{
padding:0;
margin:1px;
}
#calculater{
margin: auto;
margin-top: 30px;
border: solid 6px #2371D3;
border-spacing: 0px;
}
#display{
width: 100%;
height: 30px;
border-bottom: solid 4px #2371D3;
font-weight: bold;
color: #193D83;
font-family: 黑体;
padding-left: 2px;
}
.numberkey{
cursor: pointer;
width: 40px;
height: 30px;
border: solid 1px #FFFFFF;
background: #2371D3;
color: #ffffff;
text-align: center;
font-weight: bold;
font-family: 黑体;
}
#equality{
cursor: pointer;
width: 40px;
height: 100%;
background: #2371D3;
border: solid 1px #FFFFFF;
color: #ffffff;
text-align: center;
font-weight: bold;
font-family: 黑体;
}
.numberkey:hover{
background: #EA6F30;
}
#equality:hover{
background: #EA6F30;
}
/*JS计算器算法源码页*/
var results="";
var calresults="";
function calculater(){
if (event.srcElement.innerText=="=") {
return;
}
results+=event.srcElement.innerText;
display.innerText=results;
}
function resultscalcaulte(){
calresults=eval（results);
display.innerText=calresults;
}
过程检验：<br />
总体框架完美实现
<br />
算法逻辑检验正确
归零内部逻辑正确
检验成功！ 简易计算器制作完成！！
