student integral0
After following, you can keep track of his dynamic information in a timely manner
Courses in the relevant section：PHP basic syntax - variables (life cycle + predefined variables)
变量的使用增删改查
2021-12-160个赞
Courses in the relevant section：PHP basic syntax - constants (common constant usage + system constants)
define（）第一个参数放常量名 第二个参数放值
