When should I use a semicolon in C?

1. In the function body, that is, the content in the braces {}, the function call declaration and the function declaration that requires extra points at the end of the definition of the independent variable: for example, int max (a, B, c) define independent variables: for example, float x and y; 2. Add a plus sign at the end of a sentence (a semicolon is used for the statement used to complete the end), for example, the input and output functions: printf ("a word"); scanf ("a"); 3. After the function is assigned a value, a plus sign is required, for example, c = a * B; z = x + y; 4. The return of the function, that is, the plus points after return, such as return 0; 5. Some special syntaxes do not need to be added, because the execution sequence and result with a semicolon have changed, for example, 1 if (x> y) 2 printf ("x greater than y") in the if statement "); 3 else 4 printf ("y is greater than x"); 5 when x> y is set, execute 2, not set to execute 4, but if you add a semicolon after 1, it will not execute 2 or 4, but execute 5. 6. This part of compilation preprocessing cannot be added! For example, # include <stdio. h> void/int main # include <math. h> # define pi 3.14