What are the three ways to call functions in C language?

Three ways to call functions: 1. The function appears in the expression as an item in the expression, for example "z=max(x,y)"; 2. The function appears as a separate statement, For example "printf("%d",a)"; 3. The function is used as an actual parameter when calling another function, for example "printf("%d",max(x,y))".

The operating environment of this tutorial: windows7 system, c99 version, Dell G3 computer.

The so-called function call is to use a defined function. The general form of function call is:

functionName(param1, param2, param3 ...);

functionName is the function name, param1, param2, param3... is the actual parameter list. Actual parameters can be constants, variables, expressions, etc. Multiple actual parameters are separated by commas.

In C language, there are many ways to call functions, such as:

//1、函数作为表达式中的一项出现在表达式中
z = max(x, y);
m = n + max(x, y);
//2、函数作为一个单独的语句
printf("%d", a);
scanf("%d", &b);
//3、函数作为调用另一个函数时的实参
printf( "%d", max(x, y) );
total( max(x, y), min(m, n) );

Related recommendations: "C Language Video Tutorial"

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