之前关于写了一个nodejs密码加密中生成随机数,最近需要回顾,就顺便发到随笔上了
方法一:
Math.random().toString(36).substr(2)运行后的结果就是11位数的随机数
方法二:
1、定义函数
rush:js;">
function randomWord(randomFlag,min,max){
var str = "",range = min,arr = ['0','1','2','3','4','5','6','7','8','9','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','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'];
// 随机产生
if(randomFlag){
range = Math.round(Math.random() (max-min)) + min;
}
for(var i=0; i<range; i++){
pos = Math.round(Math.random() (arr.length-1));
str += arr[pos];
}
return str;
}
2、函数的使用
1、生成固定长度的随机数randomWord(false,位数[自己定义])