初识选择/循环语句

1.选择语句if  else

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main(){
	int answer = 0;
	printf("你喜欢我吗(1/0)?\n");
	scanf("%d",&answer);
	if (answer == 1)
		printf("你是个好男孩，很有眼光。\n");
	else
		printf("电脑已死机，请重新输入1。\n");
	return 0;
}

2.循环语句while

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
	int score = 300;
	int Day = 0;
	while (score < 400)
	{
		printf("学习第%d天,今日成绩为：%d\n",Day,score);
		Day++;
		score++;
	}
	printf("考研成功！\n");
	return 0;
}