1 <!DOCTYPE html>
2 <!-- % 求余 0%任何数=0
3 a++ 等同于a += 1
4 -->
5 <html lang="en">
6 <head>
7 <meta charset="UTF-8">
8 <title>Document</title>
9 <script type="text/javascript">
10 window.onload = function(){
11 var oInput01 = document.getElementById('input01');
12 var oInput02 = document.getElementById('input02');
13 var oBtn = document.getElementById('btn');
14 oBtn.onclick = function(){
15 var iVal01 = parseInt(oInput01.value); // 将输入的字符串转换成int类型
16 var iVal02 = parseInt(oInput02.value);
17 alert(iVal01 % iVal02);
18
19 }
20 }
21 </script>
22 </head>
23 <body>
24 <input type="text" name="" id="input01">+
25 <input type="text" name="" id="input02">
26 <input type="button" name="" id="btn" value="求余">
27 </body>
28 </html>