摘要: test()var str = "cat";var reStr = /cat/;alert(reStr.test(str));输出为:true它的返回值为true or false ;exec()var str = "a bat , a Cat , a fat cat";var reStr = /a 阅读全文
posted @ 2015-05-27 09:21 岁月淡忘了谁 阅读(282) 评论(0) 推荐(0)