當前位置：
首頁 >
前端技术
> javascript
>内容正文
javascript
jQuery/javascript实现简单网页计算器
生活随笔
收集整理的這篇文章主要介紹了
jQuery/javascript实现简单网页计算器
小編覺得挺不錯的,現在分享給大家,幫大家做個參考.
1 <html>
2 <head>
3 <meta charset="utf-8">
4 <title>jQuery實現</title>
5 <script src="jquery.js"></script>
6
7 <style type="text/css">
8 table{background-color:pink;width:300px;height:200px;}
9 td{text-align:center;}
10 </style>
11
12 <script language="javascript">
13 $("document").ready(function(){
14 $("#b1").click(function(){
15 var num1=$("#num1").val();
16 var num2=$("#num2").val();
17 var num3=eval(num1)+eval(num2);
18 $("#num3").val(num3);
19
20 });
21
22 $("#b2").click(function(){
23 var num1=$("#num1").val();
24 var num2=$("#num2").val();
25 var num3=eval(num1)-eval(num2);
26 $("#num3").val(num3);
27 });
28
29 $("#b3").click(function(){
30 var num1=$("#num1").val();
31 var num2=$("#num2").val();
32 var num3=eval(num1)*eval(num2);
33 $("#num3").val(num3);
34 });
35
36 $("#b4").click(function(){
37 var num1=$("#num1").val();
38 var num2=$("#num2").val();
39 var num3=eval(num1)/eval(num2);
40 $("#num3").val(num3);
41 });
42 });
43 </script>
44 </head>
45 <body>
46 <center>
47 <form action="" method="post">
48 <table border="1px">
49 <tr>
50 <td>數字1：</td>
51 <td><input type="text" id="num1"/></td>
52 </tr>
53 <tr>
54 <td>數字2：</td>
55 <td><input type="text" id="num2"/></td>
56 </tr>
57 <tr>
58 <td>結果：</td>
59 <td><input type="text" id="num3"/></td>
60 </tr>
61 <tr>
62 <td colspan="4">
63 <input type="button" value="加" id="b1"/>
64 <input type="button" value="減" id="b2"/>
65 <input type="button" value="乘" id="b3"/>
66 <input type="button" value="除" id="b4"/>
67 </td>
68 </tr>
69 </table>
70 </form>
71 <center>
72 </body>
73 </html> <html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>九九乘法表</title> <style type="text/css">table{background-color:pink;color:red;}</style>
</head>
<body><h1>計算器</h1><table border="1" align="center"> <tr><td>數值1：<input type="text" name="num1" id="num1"/></td></tr><tr><td>數值2：<input type="text" name="num2" id="num2"/></td></tr><tr><td>結 果：<input type="text" name="num3" id="num3"/></td></tr><tr><td colspan="4"><input type="button" value="加法" style="color:blue;" οnclick="add()"/><input type="button" value="減法" style="color:blue;" οnclick="reduce()"/><input type="button" value="乘法" style="color:blue;" οnclick="multiplication()"/><input type="button" value="除法" style="color:blue;" οnclick="division()"/></td> </tr></table><script language="javascript">function add(){var num1=document.getElementById("num1").value;var num2=document.getElementById("num2").value;if(parseInt(num1)==num1){var num1=parseInt(num1);}else{var num1=parseFloat(num1);num1=parseFloat(num1.toFixed(2));}if(parseInt(num2)==num2){var num2=parseInt(num2);}else{var num2=parseFloat(num2);num2=parseFloat(num2.toFixed(2));/*小數點尾度精確到2*/}document.getElementById("num3").value=num1+num2;}function reduce(){var num1=document.getElementById("num1").value;var num2=document.getElementById("num2").value;if(parseInt(num1)==num1){var num1=parseInt(num1);}else{var num1=parseFloat(num1);num1=parseFloat(num1.toFixed(2));}if(parseInt(num2)==num2){var num2=parseInt(num2);}else{var num2=parseFloat(num2);num2=parseFloat(num2.toFixed(2));/*小數點尾度精確到2*/}document.getElementById("num3").value=num1-num2;}function multiplication(){var num1=document.getElementById("num1").value;var num2=document.getElementById("num2").value;if(parseInt(num1)==num1){var num1=parseInt(num1);}else{var num1=parseFloat(num1);num1=parseFloat(num1.toFixed(2));}if(parseInt(num2)==num2){var num2=parseInt(num2);}else{var num2=parseFloat(num2);num2=parseFloat(num2.toFixed(2));/*小數點尾度精確到2*/}document.getElementById("num3").value=num1*num2;}function division(){var num1=document.getElementById("num1").value;var num2=document.getElementById("num2").value;if(parseInt(num1)==num1){var num1=parseInt(num1);}else{var num1=parseFloat(num1);num1=parseFloat(num1.toFixed(2));}if(parseInt(num2)==num2){var num2=parseInt(num2);}else{var num2=parseFloat(num2);num2=parseFloat(num2.toFixed(2));/*小數點尾度精確到2*/}document.getElementById("num3").value=num1/num2;
}</script>
</body>
</html>
總結
以上是生活随笔為你收集整理的jQuery/javascript实现简单网页计算器的全部內容，希望文章能夠幫你解決所遇到的問題。
- 上一篇： 正则基础之——反向引用
- 下一篇： gradle idea java ssm