话不多说,请看实例代码
<
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > <html xmlns= "http://www.w3.org/1999/xhtml" > <head> <title></title> <script type= "text/javascript" > function validation() { var val = document.getElementById( "txtNumber" ).value; var regu = /^[1-9]d*$/; //var regu = /^([1-9][0-9]*){1,3}$/; 亲测可用 //var regu = /^+?[1-9][0-9]*$/; 亲测可用 if (val != "" ) { if (!regu.test(val)) { document.getElementById( "labResult" ).style.color = "red" ; document.getElementById( "labResult" ).innerHTML = "验证失败!" ; } else { document.getElementById( "labResult" ).style.color = "green" ; document.getElementById( "labResult" ).innerHTML = "验证成功!" ; } } } </script> </head> <body> <input id= "txtNumber" name= "txtNumber" type= "text" /> <input id= "btnValidation" name= "btnValidation" type= "button" value= "校验" onclick= "validation()" /> 验证结果:<label id= "labResult" ></label> </body> </html> |
以上就是本文的全部内容,希望本文的内容对大家的学习或者工作能带来一定的帮助,同时也希望多多支持服务器之家!
原文链接:http://www.cnblogs.com/lengzhan/p/6042367.html