函数宏定义

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11

#include<stdio.h>
#include<string.h>
#define Count(n) strlen(n)

int main()
{
	char str[100] = { "China" };
	printf("The Length of string is %d!\n", Count(str));
	
	return 0;
}

C语言 函数调用 宏定义