Zero basics of C language lesson 8: Functions

2. Function call

return： It is to transfer the calculated value from the self created function back to the main function

3. Statement

Declarations can be placed in front of the main function , Then follow your own function

 

（1). Statement to add ;

（2). The declaration and definition function names should be the same

If if（ function ）

The return value of the function needs to be divided into two categories , One is the required value , The other is 0