随机验证码
function getYZM(num
){
var yzm
= "";
var rand
;
for (var i
= 0; i
< num
; i
++) {
rand
= getRand(48,122);
if(rand
>= 58 && rand
<= 64 || rand
>= 91 && rand
<= 96 ){
i
--;
}else{
yzm
+= String
.fromCharCode(rand
);
}
}
return yzm
;
}
for (var i
= 0; i
< 100; i
++) {
console
.log(getYZM(4))
}
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