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JS正则表达式整理 #4

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ybning opened this issue May 5, 2016 · 0 comments
Open

JS正则表达式整理 #4

ybning opened this issue May 5, 2016 · 0 comments

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@ybning
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ybning commented May 5, 2016

<script type="text/javascript"> function validate(){ var reg = new RegExp("^[0-9]_$"); var obj = document.getElementById("name"); if(!reg.test(obj.value)){ alert("请输入数字!"); } if(!/^[0-9]_$/.test(obj.value)){ alert("请输入数字!"); } } </script>

验证数字的正则表达式集
验证数字:^[0-9]$
验证n位的数字:^\d{n}$
验证至少n位数字:^\d{n,}$
验证m-n位的数字:^\d{m,n}$
验证零和非零开头的数字:^(0|[1-9][0-9]
)$
验证有两位小数的正实数:^[0-9]+(.[0-9]{2})?$
验证有1-3位小数的正实数:^[0-9]+(.[0-9]{1,3})?$
验证非零的正整数:^+?[1-9][0-9]$
验证非零的负整数:^-[1-9][0-9]
$
验证非负整数(正整数 + 0) ^\d+$
验证非正整数(负整数 + 0) ^((-\d+)|(0+))$
验证长度为3的字符:^.{3}$
验证由26个英文字母组成的字符串:^[A-Za-z]+$
验证由26个大写英文字母组成的字符串:^[A-Z]+$
验证由26个小写英文字母组成的字符串:^[a-z]+$
验证由数字和26个英文字母组成的字符串:^[A-Za-z0-9]+$
验证由数字、26个英文字母或者下划线组成的字符串:^\w+$
验证用户密码:^[a-zA-Z]\w{5,17}$ 正确格式为:以字母开头,长度在6-18之间,只能包含字符、数字和下划线。
验证是否含有 ^%&',;=?$" 等字符:[^%&',;=?$\x22]+
验证汉字:^[\u4e00-\u9fa5],{0,}$
验证Email地址:^\w+[-+.]\w+)@\w+([-.]\w+).\w+([-.]\w+)$
验证InternetURL:^http://([\w-]+.)+[\w-]+(/[\w-./?%&=]
)?$ ;^[a-zA-z]+://(w+(-w+))(.(w+(-w+)))(?S)?$
验证电话号码:^((\d{3,4})|\d{3,4}-)?\d{7,8}$:--正确格式为:XXXX-XXXXXXX,XXXX-XXXXXXXX,XXX-XXXXXXX,XXX-XXXXXXXX,XXXXXXX,XXXXXXXX。
验证身份证号(15位或18位数字):^\d{15}|\d{}18$
验证一年的12个月:^(0?[1-9]|1[0-2])$ 正确格式为:“01”-“09”和“1”“12”
验证一个月的31天:^((0?[1-9])|((1|2)[0-9])|30|31)$ 正确格式为:01、09和1、31。
整数:^-?\d+$
非负浮点数(正浮点数 + 0):^\d+(.\d+)?$
正浮点数 ^(([0-9]+.[0-9][1-9][0-9])|([0-9][1-9][0-9].[0-9]+)|([0-9][1-9][0-9]))$
非正浮点数(负浮点数 + 0) ^((-\d+(.\d+)?)|(0+(.0+)?))$
负浮点数 ^(-(([0-9]+.[0-9][1-9][0-9])|([0-9][1-9][0-9].[0-9]+)|([0-9][1-9][0-9])))$
浮点数 ^(-?\d+)(.\d+)?$

@ybning ybning changed the title JS正则表达式整理(更新中) JS正则表达式整理 Jul 17, 2017
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