RegExp -正则表达式

RegExp --正则表达式
RegExp 类允许使用正则表达式（即可用于在字符串中执行搜索和替换文本的模式）。

可以使用 new RegExp() 构造函数或将 RegExp 文本分配给一个变量，从而创建新的 RegExp 对象：

?Code
<!--<br /><br />Code highlighting produced by Actipro CodeHighlighter (freeware)<br />http://www.CodeHighlighter.com/<br /><br />-->/**
*?
*?@author?Default
*?@version?0.1
*/

package??
{
????import?flash.display.Sprite;
????
????public?class?regexes?extends?Sprite
????{
????????public?function?regexes()
????????{
????????????urlExp();
????????}
????????
????????private?function?metacharacters():void
????????{
????????????//?初始化正则表达式类
????????????var?pattern:RegExp?=?/hel{1,2}o/;
????????????
????????????//?需要验证的字符串
????????????var?helloWorld:String?=?"hello?world";
????????????
????????????//?输出结果
????????????trace("验证‘helloWorld’?的结果："?+?pattern.test(helloWorld));
????????}
????????
????????private?function?dotallProperty():void
????????{
????????????var?str:String?=?"Hello\n?World";???
????????????
????????????var?pattern:RegExp?=?/Hello.World/;
????????????trace(pattern.dotall);
????????????
????????????pattern?=?/Hello.World/s;
????????????trace(pattern.dotall);
????????}
????????
????????private?function?extendedProperty():void
????????{
????????????var?str:String?=?"Hello?World";
????????????
????????????var?pattern:RegExp?=?/Hello?World/;
????????????trace(pattern.extended);
????????????
????????????pattern?=?/Hello?World/x;
????????????trace(pattern.extended);
????????}
????????
????????private?function?base():void
????????{
????????????//?初始化正则表达式类
????????????var?pattern:RegExp?=?/world/;
????????????
????????????//?需要验证的字符串
????????????var?helloWorld:String?=?"hello?world!";
????????????var?hello:String?=?"hello";
????????????
????????????//?输出结果
????????????trace("验证?‘helloWorld’?字符串的结果："?+?pattern.test(helloWorld));
????????????trace("验证?‘hello’?字符串的结果："?+?pattern.test(hello));
????????}
????????
????????private?function?gbd():void
????????{
????????????//?初始化正则表达式类
????????????var?pattern:RegExp?=?/[\u4e00-\u9fa5]/;
????????????
????????????//?需要验证的字符串
????????????var?nihao:String?=?"你好";
????????????var?hello:String?=?"hello";
????????????
????????????//?输出结果
????????????trace("验证?‘你好’?字符串的结果："?+?pattern.test(nihao));
????????????trace("验证?‘hello’?字符串的结果："?+?pattern.test(hello));
????????}
????????
????????private?function?emailExp():void
????????{
????????????//?初始化正则表达式类
????????????var?pattern:RegExp?=?/\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/;
????????????
????????????//?需要验证的字符串
????????????var?email:String?=?"lalo@gmail.com";
????????????var?errEmail1:String?=?"lalo@gmail";
????????????var?errEmail2:String?=?"lalo.gmail.com";
????????????
????????????//?输出结果
????????????trace("验证正确的邮件格式的结果："?+?pattern.test(email));
????????????trace("验证错误1的邮件格式的结果："?+?pattern.test(errEmail1));
????????????trace("验证错误2的邮件格式的结果："?+?pattern.test(errEmail2));
????????}
????????
????????private?function?urlExp():void
????????{
????????????//?初始化正则表达式类
????????????var?pattern:RegExp?=?/[a-zA-z]+:\/\/[^\s]*/;
????????????
????????????//?需要验证的字符串
????????????var?url:String?=?"http://www.adobe.com";
????????????var?errUrl:String?=?"adobe.com";
????????????
????????????//?输出结果
????????????trace("验证正确的网址格式的结果："?+?pattern.test(url));
????????????trace("验证错误的网址格式的结果："?+?pattern.test(errUrl));
????????}
????????
????????private?function?telExp():void
????????{
????????????//?初始化正则表达式类
????????????var?pattern:RegExp?=?/\d{3}-\d{8}|\d{4}-\d{7}/;
????????????
????????????//?需要验证的字符串
????????????var?tel1:String?=?"0755-09874567";
????????????var?tel2:String?=?"010-98765745";
????????????var?errTel:String?=?"0228974444";
????????????
????????????//?输出结果
????????????trace("验证正确的电话号码1的结果："?+?pattern.test(tel1));
????????????trace("验证正确的电话号码2的结果："?+?pattern.test(tel2));
????????????trace("验证错误的电话号码的结果："?+?pattern.test(errTel));
????????}
????????
????????private?function?qqExp():void
????????{
????????????//?初始化正则表达式类
????????????var?pattern:RegExp?=?/[1-9][0-9]{4,}/;
????????????
????????????//?需要验证的字符串
????????????var?qq:String?=?"89056743";
????????????var?errQQ:String?=?"1234";
????????????
????????????//?输出结果
????????????trace("验证正确的QQ号码的结果："?+?pattern.test(qq));
????????????trace("验证错误的QQ号码的结果："?+?pattern.test(errQQ));
????????}
????????
????????private?function?codeExp():void
????????{
????????????//?初始化正则表达式类
????????????var?pattern:RegExp?=?/[1-9]\d{5}(?!\d)/;
????????????
????????????//?需要验证的字符串
????????????var?code:String?=?"518000";
????????????var?errCode:String?=?"1234";
????????????
????????????//?输出结果
????????????trace("验证正确的邮政编码的结果："?+?pattern.test(code));
????????????trace("验证错误的邮政编码的结果："?+?pattern.test(errCode));
????????}
????????
????????private?function?idCardExp():void
????????{
????????????//?初始化正则表达式类
????????????var?pattern:RegExp?=?/\d{15}|\d{18}/;
????????????
????????????//?需要验证的字符串
????????????var?idCard:String?=?"220724198601010912";
????????????var?errIdCard:String?=?"1234";
????????????
????????????//?输出结果
????????????trace("验证正确的身份证的结果："?+?pattern.test(idCard));
????????????trace("验证错误的身份证的结果："?+?pattern.test(errIdCard));
????????}
????}
????
}

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