【个人记录】bat随机生成数字加字母的四位字符

用于记录存档

@echo off & setlocal enabledelayedexpansion
:: 设置要生成的位数
set ws=4
:: 定义要生成字符的范围 0 -9a-zA-Z
set str=0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
for /l %%a in (1,1,%ws%) do (
    set /a num=!random!%%62
    call set zf=%%str:~!num!,1%%
    set pw=!pw!!zf!
    ping 127.0.0.1 -n "1">nul
)
:: 输出随机生成的字符
echo,&echo  !pw!
pause