After following, you can keep track of his dynamic information in a timely manner
Courses in the relevant section：Resource type of php data type
这章是操作资源图片的代码 记录一下
2019-05-220个赞
Courses in the relevant section：Arithmetic operations of PHP expressions and operators
一个等于号是赋值 两个等于号是相等的意思
2019-01-100个赞
Courses in the relevant section：Logical operators of PHP expressions and operators
==全等于 ===判断类型等于
2019-01-100个赞
Courses in the relevant section：Bitwise operation of PHP expressions and operators
exit程序终止的意思
2019-01-100个赞
Courses in the relevant section：PHP expressions and operators: ternary operator and other operators
三元运算符？后边是真代码块：后边是假代码块
2019-01-110个赞
Courses in the relevant section：The value content of the meta information element
meta标签里面的name=“keywords” 是和content放在一起用的。
2019-01-110个赞
Courses in the relevant section：elements br and pre
br闭合标签 pre保持代码原状输出
2019-01-110个赞
