var
reg = /^\d{4}$/;
var
str =
"0001"
;
reg.test(str);
原文地址:https://www.cnblogs.com/libin6505/p/8492139.html
时间: 2024-08-30 08:04:55
var
reg = /^\d{4}$/;
var
str =
"0001"
;
reg.test(str);
原文地址:https://www.cnblogs.com/libin6505/p/8492139.html