package ch17_1
{
	import flash.display.MovieClip;
	
	public class Text extends MovieClip
	{
		public function Text()
		{
			var myP1:RegExp = new RegExp("abc");
			var myP2:RegExp =/abc/;
			//两种定义完全等效
			
			var str1:String ="123";
			var str2:String ="bc";
			var str3:String ="abc";
			var str4:String ="cba";
			trace("str1 匹配："+myP1.test(str1));
			trace("str2 匹配："+myP1.test(str2));
			trace("str3 匹配："+myP1.test(str3));
			trace("str4 匹配："+myP1.test(str4));
		}
	}
}

结果：

str1 匹配：false str2 匹配：false str3 匹配：true str4 匹配：false