C Language Common symbols Chinese interpretation

1, #include <> format: reference to the standard library header file, the compiler from the standard library directory to start searching;

2, #include "" "" "Format: reference to non-standard library header files, the compiler from the user's working directory to start searching;

3, C language "^" symbol is a bit operation, different or;

4, C language symbol & is & representation and operation For example: A&b is a, b and operation;

5. What do you mean by-> symbol in C language? Like C=a->b.

A is a pointer to a struct or a,-> that calls its members

6, C language, the symbol "!=" and "= =" What is the meaning? Like a!=b,a==0.

!= is the logic not equal to the number and = = is to judge whether the equality:

Like what:

int a=3,b=4

The value of the a!=b,a is not equal to the value of B, so a!=b is correct

A==0 is to determine whether a is equal to 0, obviously not equal to 0, then is False