C语言从猜数字游戏中理解数据结构

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main()
{
	int guess,magic;       //magic计算机想的数
	srand(time(NULL));     //用时间做种子，产生一个随机数
	magic = rand()%100+1;    //随机数落到1-100之间
	printf("guess a number:\n");     //用户猜一个数
	scanf("%d",&guess);
	if(guess>magic)           //计算机判断，并告诉你猜的情况
		printf("too big!\n");
	else if(guess<magic)
		printf("too small!\n");
	else
		printf("right!\n");
	printf("the right number is %d\n",magic);
	return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main()
{
	int guess,magic;       
	srand(time(NULL));     
	magic = rand()%100+1;    
	do{       ///用户和计算机判断是循环体
		printf("guess a number:\n");  
		scanf("%d",&guess);
		if(guess>magic)         
			printf("too big!\n");
		else if(guess<magic)
			printf("too small!\n");
		else
			printf("right!\n");
	}while(guess!=magic);  //循环条件
	printf("the right number is %d\n",magic);
	return 0;
}
}

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main()
{
	int guess,magic;       
	int count=0;      //计数器，一次都还没有猜，初始为0
	srand(time(NULL));     
	magic = rand()%100+1;   
	do{
	    count++;        //猜1次，计数器加1
		printf("the %dth: guess a number:\n",count);     //显示第几次猜    
		scanf("%d",&guess);
		if(guess>magic)           
			printf("too big!\n");
		else if(guess<magic)
			printf("too small!\n");
		else
			printf("right!\n");
	}while(count<=10);   //判断猜到10次了没有
	printf("the right number is %d\n",magic);
	return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main()
{
	int guess,magic;       
	int count=0;      
	srand(time(NULL));     
	magic = rand()%100+1;   
	do{
	    count++;        
		printf("the %dth: guess a number:\n",count);     
		scanf("%d",&guess);
		if(guess>100 ||guess<1)    //处理情况1
		{
			printf("You guess the number should be in the range [1,100]:\n");
			continue;      //跳过本次循环
		}
		if(guess>magic)           
			printf("too big!\n");
		else if(guess<magic)
			printf("too small!\n");
		else
		{
			printf("right!\n");
			break;             //处理情况2
		}
	}while(count<=10);   
	printf("the right number is %d\n",magic);
	return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main()
{
	int guess,magic;       
	int count;
	int reply=0;   //用户是否继续游戏
	do{
		count=0;               //每猜一个新的数，计数器清0
		srand(time(NULL));      //重新产生一个新的数来猜 
		magic = rand()%100+1;   
		do{
			count++;        //猜1次，计数器加1
			printf("the %dth: guess a number:\n",count);         
			scanf("%d",&guess);
			if(guess>100 ||guess<1)
			{
				printf("You guess the number should be in the range [1,100]:\n");
				continue;
			}
			if(guess>magic)           
				printf("too big!\n");
			else if(guess<magic)
				printf("too small!\n");
			else
			{
				printf("right!\n");
				break;
			}
		}while(count<=10);   
		printf("the right number is %d\n",magic);
		printf("Is the game continue? 1(yes) or 0(no):\n"); //询问是否继续游戏
		scanf("%d",&reply);   //获得用户的意愿
	}while(reply==1);        //如果意愿是1，则继续游戏；否则，整个程序结束
	return 0;
}