利用javascript如何随机生成一定位数的密码

前言

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需求

随机生成一定位数的密码，有最小个数和最大个数，必须包含数字、大小写字母，和特殊字符比如（- _ #）；

代码

function createPassword(min,max) {
 //可以生成随机密码的相关数组
 var num = ["0","1","2","3","4","5","6","7","8","9"];
 var english = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"];
 var ENGLISH = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"];
 var special = ["-","_","#"];
 var config = num.concat(english).concat(ENGLISH).concat(special);

 //先放入一个必须存在的
 var arr = [];
 arr.push(getOne(num));
 arr.push(getOne(english));
 arr.push(getOne(ENGLISH));
 arr.push(getOne(special));

 //获取需要生成的长度
 var len = min + Math.floor(Math.random()*(max-min+1));

 for(var i=4; i

使用

传入一个生成的密码的最小位数，和最大位数，即可返回一个随机密码

console.log(createPassword(8,15));

总结

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