#JavaScript

用js为用户生成一个至少要含一个大写字母、一个小写字母、一个特殊字符、一个数字的8位初始密码，注：特殊字符包括：!@#$%&*_=+-/

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function shuffle(arr) {
var cur = arr.length, tmp, r;
while (0 !== cur) {
r = Math.floor(Math.random() * cur);
cur -= 1;
tmp = arr[cur];
arr[cur] = arr[r];
arr[r] = tmp;
}
return arr;
}
function rand(str) {
return str[Math.floor(Math.random() * str.length)];
}
function randomPwd(length, chars) {
const masks = [
'abcdefghijklmnopqrstuvwxyz',
'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
'0123456789',
'!@#$%^&*_=+-/'
];
let result = masks.map(rand).join('');
const mask = masks.join('');
for (var i = length - 4; i > 0; --i) {
result += rand(mask)
}
return shuffle(result);
}
#JavaScript