=LOWER(CHAR(RANDBETWEEN(65,90))&CHAR(RANDBETWEEN(65,90))&CHAR(RANDBETWEEN(65,90))&CHAR(RANDBETWEEN(48,57))&CHAR(RANDBETWEEN(48,57))&CHAR(RANDBETWEEN(48,57)))
48,57 就是数字;
65,90 就是字母;
lower() 是小写字母函数
=LOWER(CHAR(RANDBETWEEN(65,90))&CHAR(RANDBETWEEN(65,90))&CHAR(RANDBETWEEN(65,90))&CHAR(RANDBETWEEN(48,57))&CHAR(RANDBETWEEN(48,57))&CHAR(RANDBETWEEN(48,57)))
48,57 就是数字;
65,90 就是字母;
lower() 是小写字母函数