程序概念、int变量、if判断、函数概念

#include <stdio.h>

int main()
{
	/* YJY */
	int num = 1;
	printf("%d\n", num);
	if(num == 1){
		printf("YJY\n");
	}else{
		printf("YAN\n");
	}

	/* jiafa lianxi */
	int num1 = 89;
	int num2 = 107689;
	int result = sum(num1, num2);
	printf("%d\n", result);

   
   return 0;
}

/* sum */
int sum(int num1, int num2){
	return num1+num2;
}

2018.10.20