@shixinde/vuepress-theme-init
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VueX 笔记.md<!----></a><!----></li><li><a class="route-link auto-link vp-sidebar-item" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/js%E5%87%BD%E6%95%B0%E5%B0%81%E8%A3%85.html" aria-label="9. js函数封装.md"><!---->9. js函数封装.md<!----></a><!----></li><li><a class="route-link auto-link vp-sidebar-item" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/js%E5%B8%B8%E8%A7%84.html" aria-label="10. js常规.md"><!---->10. js常规.md<!----></a><!----></li><li><a class="route-link auto-link vp-sidebar-item" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/uView%E5%9F%BA%E6%9C%AC%E4%BD%BF%E7%94%A8.html" aria-label="11. uView基本使用.md"><!---->11. uView基本使用.md<!----></a><!----></li><li><a class="route-link auto-link vp-sidebar-item" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/uniapp%20%E5%BC%95%E5%85%A5%E7%BB%84%E4%BB%B6%E5%BA%93.html" aria-label="12. uniapp 引入组件库.md"><!---->12. uniapp 引入组件库.md<!----></a><!----></li><li><a class="route-link route-link-active auto-link vp-sidebar-item active" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/%E5%B8%B8%E7%94%A8%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F.html" aria-label="13. 常用正则表达式.md"><!---->13. 常用正则表达式.md<!----></a><!----></li><li><a class="route-link auto-link vp-sidebar-item" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/%E7%95%8C%E9%9D%A2%E7%B1%BB.html" aria-label="14. 界面类.md"><!---->14. 界面类.md<!----></a><!----></li><li><a class="route-link auto-link vp-sidebar-item" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/%E7%AC%94%E8%AE%B0.html" aria-label="15. 笔记.md"><!---->15. 笔记.md<!----></a><!----></li><li><a class="route-link auto-link vp-sidebar-item" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/%E7%BB%84%E4%BB%B6%E5%B0%81%E8%A3%85.html" aria-label="16. 组件封装.md"><!---->16. 组件封装.md<!----></a><!----></li><li><a class="route-link auto-link vp-sidebar-item" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/%E7%BC%96%E7%A8%8B%E9%80%BB%E8%BE%91%E6%95%B4%E7%90%86.html" aria-label="17. 编程逻辑整理.md"><!---->17. 编程逻辑整理.md<!----></a><!----></li><li><a class="route-link auto-link vp-sidebar-item" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/%E8%B0%83%E7%94%A8%E6%8E%A5%E5%8F%A3.html" aria-label="18. 调用接口.md"><!---->18. 调用接口.md<!----></a><!----></li><!--]--></ul></li><!--]--></ul><!--[--><!--]--></aside><!--]--><!--[--><main class="vp-page"><!--[--><!--]--><div class="theme-default-content"><!--[--><!--]--><div><p>常用正则 ：</p><p>推荐网站：<a href="https://www.sojson.com/regex/generate" target="_blank" rel="noopener noreferrer">正则表达式生成器，常用正则表达式在线生成</a></p><p><strong>一、校验数字的表达式</strong></p><p>1 数字：^[0-9]*$</p><p>2 n位的数字：^\d{n}$</p><p>3 至少n位的数字：^\d{n,}$</p><p>4 m-n位的数字：^\d{m,n}$</p><p>5 零和非零开头的数字：^(0|[1-9][0-9]*)$</p><p>6 非零开头的最多带两位小数的数字：^([1-9][0-9]*)+(.[0-9]{1,2})?$</p><p>7 带1-2位小数的正数或负数：^(-)?\d+(.\d{1,2})?$</p><p>8 正数、负数、和小数：^(-|+)?\d+(.\d+)?$</p><p>9 有两位小数的正实数：^[0-9]+(.[0-9]{2})?$</p><p>10 有1~3位小数的正实数：^[0-9]+(.[0-9]{1,3})?$</p><p>11 非零的正整数：^[1-9]\d*$ 或 ^([1-9][0-9]<em>){1,3}$ 或 ^+?[1-9][0-9]</em>$</p><p>12 非零的负整数：^-[1-9][]0-9"<em>$ 或 ^-[1-9]\d</em>$</p><p>13 非负整数：^\d+$ 或 ^[1-9]\d*|0$</p><p>14 非正整数：^-[1-9]\d*|0$ 或 ^((-\d+)|(0+))$</p><p>15 非负浮点数：^\d+(.\d+)?$ 或 ^[1-9]\d*.\d*|0.\d*[1-9]\d*|0?.0+|0$</p><p>16 非正浮点数：^((-\d+(.\d+)?)|(0+(.0+)?))$ 或 ^(-([1-9]\d*.\d*|0.\d*[1-9]\d*))|0?.0+|0$</p><p>17 正浮点数：^[1-9]\d*.\d*|0.\d*[1-9]\d*$ 或 ^(([0-9]+.[0-9]<em>[1-9][0-9]</em>)|([0-9]<em>[1-9][0-9]</em>.[0-9]+)|([0-9]<em>[1-9][0-9]</em>))$</p><p>18 负浮点数：^-([1-9]\d*.\d*|0.\d*[1-9]\d*)$ 或 ^(-(([0-9]+.[0-9]<em>[1-9][0-9]</em>)|([0-9]<em>[1-9][0-9]</em>.[0-9]+)|([0-9]<em>[1-9][0-9]</em>)))$</p><p>19 浮点数：^(-?\d+)(.\d+)?$ 或 ^-?([1-9]\d*.\d*|0.\d*[1-9]\d*|0?.0+|0)$</p><p><strong>二、校验字符的表达式</strong></p><p>1 汉字：^[\u4e00-\u9fa5]{0,}$</p><p>2 英文和数字：^[A-Za-z0-9]+$ 或 ^[A-Za-z0-9]{4,40}$</p><p>3 长度为3-20的所有字符：^.{3,20}$</p><p>4 由26个英文字母组成的字符串：^[A-Za-z]+$</p><p>5 由26个大写英文字母组成的字符串：^[A-Z]+$</p><p>6 由26个小写英文字母组成的字符串：^[a-z]+$</p><p>7 由数字和26个英文字母组成的字符串：^[A-Za-z0-9]+$</p><p>8 由数字、26个英文字母或者下划线组成的字符串：^\w+$ 或 ^\w{3,20}$</p><p>9 中文、英文、数字包括下划线：^[\u4E00-\u9FA5A-Za-z0-9_]+$</p><p>10 中文、英文、数字但不包括下划线等符号：^[\u4E00-\u9FA5A-Za-z0-9]+$ 或 ^[\u4E00-\u9FA5A-Za-z0-9]{2,20}$</p><p>11 可以输入含有^%&',;=?$"等字符：[^%&',;=?$\x22]+</p><p>12 禁止输入含有~的字符：[^~\x22]+</p><p><strong>三、特殊需求表达式</strong></p><p>1 Email地址：^\w+([-+.]\w+)<em>@\w+([-.]\w+)</em>.\w+([-.]\w+)*$</p><p>2 域名：[a-zA-Z0-9][-a-zA-Z0-9]{0,62}(/.[a-zA-Z0-9][-a-zA-Z0-9]{0,62})+/.?</p><p>3 InternetURL：[a-zA-z]+://[^\s]* 或 ^http://([\w-]+.)+[\w-]+(/[\w-./?%&=]*)?$</p><p>4 手机号码：^(13[0-9]|14[5|7]|15[0|1|2|3|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$</p><p>5 电话号码("XXX-XXXXXXX"、"XXXX-XXXXXXXX"、"XXX-XXXXXXX"、"XXX-XXXXXXXX"、"XXXXXXX"和"XXXXXXXX)：^((\d{3,4}-)|\d{3.4}-)?\d{7,8}$</p><p>6 国内电话号码(0511-4405222、021-87888822)：\d{3}-\d{8}|\d{4}-\d{7}</p><p>7 身份证号(15位、18位数字)：^\d{15}|\d{18}$</p><p>8 短身份证号码(数字、字母x结尾)：^([0-9]){7,18}(x|X)?$ 或 ^\d{8,18}|[0-9x]{8,18}|[0-9X]{8,18}?$</p><p>9 帐号是否合法(字母开头，允许5-16字节，允许字母数字下划线)：^[a-zA-Z][a-zA-Z0-9_]{4,15}$</p><p>10 密码(以字母开头，长度在6~18之间，只能包含字母、数字和下划线)：^[a-zA-Z]\w{5,17}$</p><p>11 强密码(必须包含大小写字母和数字的组合，不能使用特殊字符，长度在8-10之间)：^(?=.<em>\d)(?=.</em>[a-z])(?=.*[A-Z]).{8,10}$</p><p>12 日期格式：^\d{4}-\d{1,2}-\d{1,2}</p><p>13 一年的12个月(01～09和1～12)：^(0?[1-9]|1[0-2])$</p><p>14 一个月的31天(01～09和1～31)：^((0?[1-9])|((1|2)[0-9])|30|31)$</p><p>15 钱的输入格式：</p><p>16 1.有四种钱的表示形式我们可以接受:"10000.00" 和 "10,000.00", 和没有 "分" 的 "10000" 和 "10,000"：^[1-9][0-9]*$</p><p>17 2.这表示任意一个不以0开头的数字,但是,这也意味着一个字符"0"不通过,所以我们采用下面的形式：^(0|[1-9][0-9]*)$</p><p>18 3.一个0或者一个不以0开头的数字.我们还可以允许开头有一个负号：^(0|-?[1-9][0-9]*)$</p><p>19 4.这表示一个0或者一个可能为负的开头不为0的数字.让用户以0开头好了.把负号的也去掉,因为钱总不能是负的吧.下面我们要加的是说明可能的小数部分：^[0-9]+(.[0-9]+)?$</p><p>20 5.必须说明的是,小数点后面至少应该有1位数,所以"10."是不通过的,但是 "10" 和 "10.2" 是通过的：^[0-9]+(.[0-9]{2})?$</p><p>21 6.这样我们规定小数点后面必须有两位,如果你认为太苛刻了,可以这样：^[0-9]+(.[0-9]{1,2})?$</p><p>22 7.这样就允许用户只写一位小数.下面我们该考虑数字中的逗号了,我们可以这样：^[0-9]{1,3}(,[0-9]{3})*(.[0-9]{1,2})?$</p><p>23 8.1到3个数字,后面跟着任意个 逗号+3个数字,逗号成为可选,而不是必须：^([0-9]+|[0-9]{1,3}(,[0-9]{3})*)(.[0-9]{1,2})?$</p><p>24 备注：这就是最终结果了,别忘了"+"可以用"*"替代如果你觉得空字符串也可以接受的话(奇怪,为什么?)最后,别忘了在用函数时去掉去掉那个反斜杠,一般的错误都在这里</p><p>25 xml文件：^([a-zA-Z]+-?)+[a-zA-Z0-9]+\.[x|X][m|M][l|L]$</p><p>26 中文字符的<a href="https://so.csdn.net/so/search?q=%E6%AD%A3%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8F&spm=1001.2101.3001.7020" target="_blank" rel="noopener noreferrer">正则表达式</a>：[\u4e00-\u9fa5]</p><p>27 双字节字符：[^\x00-\xff] (包括汉字在内，可以用来计算字符串的长度(一个双字节字符长度计2，ASCII字符计1))</p><p>28 空白行的正则表达式：\n\s*\r (可以用来删除空白行)</p><p>29 HTML标记的正则表达式：<(\S*?)[^>]<em>>.</em>?</\1>|<.*? /> (网上流传的版本太糟糕，上面这个也仅仅能部分，对于复杂的嵌套标记依旧无能为力)</p><p>30 首尾空白字符的正则表达式：^\s*|\s*$或(^\s*)|(\s*$) (可以用来删除行首行尾的空白字符(包括空格、制表符、换页符等等)，非常有用的表达式)</p><p>31 腾讯QQ号：[1-9][0-9]{4,} (腾讯QQ号从10000开始)</p><p>32 中国邮政编码：[1-9]\d{5}(?!\d) (中国邮政编码为6位数字)</p><p>33 IP地址：\d+.\d+.\d+.\d+ (提取IP地址时有用)</p><p>34 IP地址：((?😦?:25[0-5]|2[0-4]\d|[01]?\d?\d)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d?\d))</p><p>匹配时间日期</p><div class="language-text line-numbers-mode" data-highlighter="prismjs" data-ext="text" data-title="text"><pre class="language-text"><code><span class="line">let reg = /\d{4}-(0\d|1[0-2])-([0-2]\d|3[01])( ([01]\d|2[0-3])\:[0-5]\d)/g;</span>
<span class="line">2020-06-30 00:00</span>
<span class="line">let reg2 = /\d{4}\/(0\d|1[0-2])\/([0-2]\d|3[01])( ([01]\d|2[0-3])\:[0-5]\d)/g</span>
<span class="line">2020/06/30 00:00;</span>
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