(C语言)每日代码||2023.12.21||C语言预处理命令，#define、#line、__LINE__、__FILE__

#include <stdio.h>
#define AAA 111
void test() {
    printf("__LINE__ = % d\n", __LINE__);
    printf("AAA = %d\n", AAA);
}
#define AAA 222
#line 1 "test"
 
int main(){
    printf("test\n");
    test();
    //__LINE__ =  1132
    //AAA = 111
    printf("\n");
    printf("\n");
 
    printf("__LINE__=%d\n", __LINE__);//__LINE__=10
    printf("AAA=%d\n",AAA);//AAA=222
    printf("%s\n", __FILE__);//test
    printf("\n");
	return 0;
}