摘要:
教程地址:https://www.bilibili.com/video/av70550385 let 为声明块作用域的变量 {let xhr='a'} console.log(xhr);//xhr is not defined const 为恒量,声明一次后不允许再次声明该变量,但若是声明为数组则可 阅读全文
摘要:
快速复习视频地址:https://www.bilibili.com/video/BV1Vt411z7wy?p=10 快速复习手册地址:https://www.runoob.com/mysql/mysql-insert-query.html select * from xhrs_user_list S 阅读全文