密码的正则表达式，包含至少2个大写字母，2个小写字母，2个符号和2个任意顺序的数字 [英] Regular expression for a password containing at least 2 uppercase letters, 2 lowercase letters, 2 symbols, and 2 numbers in any sequence

问题描述

当我与RegEx()一起使用时，这在JavaScript密码验证中不起作用:

This is not working in JavaScript password validation when I am using it with RegEx():

(?=(.*\\d){2,})(?=(.*[A-Z]){2,})(?=(.*[a-z]){2,})(?=(.*[!@#$%^&*?]){2,})(?!.*[\\s])^.*

推荐答案

在这里:
我使用的正则表达式是:

Here you go:
The regex that I've used is:

1)(?=(. \ d){2})->至少2位数字
2)(?=(. [a-z]){2})->至少2个小写字符
3)(?=(. [A-Z]){2})->至少2个大写字符
4)(?=(. [！@#$％]){2})->至少2个特殊字符，可以是！，@，#，$，％

1) (?=(.\d){2}) --> atleast 2 digits
2) (?=(.[a-z]){2}) --> atleast 2 lower case chars
3) (?=(.[A-Z]){2}) --> atleast 2 upper case chars
4) (?=(.[!@#$%]){2}) --> atleast 2 special chars, can be any one of !, @, #, $, %

angular.module('myApp', [])
  .controller('MyController', function($scope) {
    $scope.password = '';

    // (?=(.*\d){2}) --> atleast 2 digits
    // (?=(.*[a-z]){2}) --> atleast 2 lower case chars
    // (?=(.*[A-Z]){2}) --> atleast 2 upper case chars
    // (?=(.*[!@#$%]){2}) --> atleast 2 special chars, can be any one of !, @, #, $, %
    $scope.pattern = /(?=(.*\d){2})(?=(.*[a-z]){2})(?=(.*[A-Z]){2})(?=(.*[!@#$%]){2})/;
  });

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>

<div ng-app="myApp" ng-controller="MyController">

  <form name="myForm">
    <label>Enter password: </label>
    <input type="password" name="password" ng-model="password" ng-pattern="pattern">
    <span style="color:red" class="error" ng-show="myForm.password.$error.pattern">Password is not valid, doesn't match the provided pattern.</span>
  </form>

</div>

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