常用的正则

• 先写这些以后再补充

1)手机号正则     /^1\d{10}$/2)有效数字正则    /^[+-]?(\d|([1-9]\d+))(\.\d+)?$/3)验证年龄 18-65  /^((18|19)|([2-5]\d)|(6[0-5]))$/;4)验证邮箱的正则   /^([\w.-]+)@([0-9a-zA-Z]+)(\.[a-zA-Z]{2,4}){1,2}$/5)中文名字  /^[\u4e00-\u9fa5]{2,4}$/6)身份证号var reg = /^\d{17}(\d|X)$/;var reg = /^(\d{2})(\d{4})(\d{4})(\d{2})(\d{2})(\d{2})(\d)(\d|X)$/;7)模板引擎实现原理var str='my name is {0},my age is {1} , i come form {2}';8）var str='20160514';   var ary=['零','壹','贰','叁','肆','伍','陆','柒','捌','玖'];9）var str='全日制第七期学费:13000';   var ary=['零','壹','贰','叁','肆','伍','陆','柒','捌','玖'];10）统计出现次数最多的单词(可能是多个)，及出现多少次11）var str='http://image.baidu.com/search/index?tn=baiduimage&ipn=r&ct=201326592&cl=2&lm=-1&st=-1&fm=result&fr=&sf=1&fmq=1462967508128_R&pv=&ic=0&nc=1&z=&se=1&showtab=0&fb=0&width=&height=&face=0&istype=2&ie=utf-8&word=%E5%88%98%E8%AF%97%E8%AF%97'    var reg=/(([^?&=]+)=([^?&=]+))/g;