正则表达式常用

        一些常用的正则表达式

1. package { 
2.   public class RegularExpression { 
3.       public function RegularExpression() { } 
4.            //判断是否为中文字符串  
5.              public static function matchChinese(word:String):Boolean {
6.                 var pattern:RegExp =/[/u4e00-/u9fa5]/; 
7.                  return pattern.test(word) }
8.            //匹配邮件地址  
9.              public static function matchEmail(email:String):Boolean {
10.                 var pattern:RegExp =//w+([-+.]/w+)*@/w+([-.]/w+)*/./w+([-.]/w+)*/; 
11.                 return pattern.test(email) } 
12.            //匹配网址  
13.              public static function matchURL(url:String):Boolean { 
14.                 var pattern:RegExp =/[a-zA-z]+:////[^/s]*/; 
15.                  return pattern.test(url) } 
16.           //匹配电话号码  
17.             public static function matchPhonecode(num:String):Boolean { 
18.                 var pattern:RegExp =//d{3}-/d{8}|/d{4}-/d{7}/; 
19.                 return pattern.test(num) } 
20.           //匹配QQ号  
21.            public static function matchQQ(qq:String):Boolean { 
22.                  var pattern:RegExp =/[1-9][0-9]{4,}/; 
23.                  return pattern.test(qq) } 
24.           //匹配邮政编码  
25.             public static function matchPostalcode(num:String):Boolean {
26.                  var pattern:RegExp =/[1-9]/d{5}(?!/d)/; 
27.                  return pattern.test(num) } 
28.          //匹配身份证 
29.           public static function matchIDcard(num:String):Boolean { 
30.                 var pattern:RegExp =//d{15}|/d{18}/; 
31.                  return pattern.test(num) } 
33.          //匹配时间
34.           public static function matchTime(num:String):Boolean { 
35.                 var pattern:RegExp =/([0-1]?[0-9]|2[0-3]):([0-5][0-9])/; 
36.                 return pattern.test(num) }
38.          //匹配日期
39.           public static function matchData(num:String):Boolean { 
40.                 var pattern:RegExp =/(1[0-2]|0?[1-9])[-./](0?[1-9]|[12][0-9]|3[01])[-./](dddd))/; 
41.                  return pattern.test(num) }
43.          //截取字符串 
44.           public static function interception(source:String,prefix:String,suffix:String):String{
45.               var reg:RegExp=new RegExp("(?<="+prefix+").*?(?="+suffix+")","s");
46.               var obj:String=reg.exec(source).toString();
47.               return obj
48.           }
49.          
50.         //匹配多项 
51.         public static function matchMore(source:String,prefix:String,suffix:String):Array{
52.               var reg:RegExp=new RegExp("(?<="+prefix+").*?(?="+suffix+")","g");
53.               var obj:Array=source.match(reg)
54.               return obj
55.           }
57. } }