实验二

标签：include return int scanf 实验 printf main

 

实验任务1 task1.c

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#define R2 701

#define N 5
#define R1 586

int main()
{
	int number;
	int i;
	
	srand( time(0) );//以当前系统时间作为随机种子
	
	for(i = 0; i < N; ++i)
	{
		number = rand() % (R2 - R1 + 1) + R1;
		printf("20228330%04d\n", number);
	 } 

    return 0;
}

 

实验任务2 task2.c

#include<stdio.h>

int main()
{
    double x, y;
    char c1, c2, c3;
    int a1, a2, a3;
    
    scanf("%d%d%d",&a1,&a2,&a3);
    printf("a1 = %d, a2 = %d, a3 = %d\n",a1,a2,a3);
    
    scanf("%c%c%c",&c1, &c2, &c3);
    printf("c1 = %c, c2 = %c, c3 = %c\n", c1, c2, c3);
    
    scanf("%lf%lf", &x, &y);
    printf("x = %lf, y = %lf\n",x,y);
    
    return 0;
}

 

实验任务3 task3_1.c
#include<stdio.h>
#include<math.h>

int main()
{
    double x, ans;
    
    scanf("%lf", &x);
    ans = pow(x,365);
    printf("%.2f的365次方：5.2f\n", x, ans);
    
    return 0;
}

 

task3_2.c
#include<stdio.h>
#include<math.h>

int main()
{
    double x, ans;
    
    while(scanf("%lf", &x) != EOF)
    {
        ans = pow(x, 365);
        printf("%.2f的365次方：%.2f\n", x, ans);
        printf("\n");
    }
    
        return 0;
}

 

 

 

 

task3_3.c
#include<stdio.h>
#include<math.h>

int main()
{
    int c;
    double f,x;
    
    
    while(scanf_s("%d", &c))
    {
        f = 9.0 / 5 * c + 32;
        x = c;
        printf("摄氏度c=%.2lf时，华氏度f=%.2lf", x, f);
        printf("\n");
    }
    
        system("pause");
        return 0;
}

 

实验任务4 task4.c

#include<stdio.h>
int main()
{
    char light;
    
    
    while(scanf("%c",&light)!=EOF)
    {
        getchar();
        switch(light)
        {
            case'r':printf("stop!\n");break;
            case'g':printf("go go go\n");break;
            case'y':printf("wait a minute\n");break;
            default :printf("something must be wrong\n");break;
            
            
        }
    }
    return 0;
}

 

 

实验任务5 task5.c
#include<stdio.h>
#include<stdlib.h>
#include<time.h>

#define N 3
#define R1 1
#define R2 30
int main()
{
    int n1,n2,i,flag;
    
    srand(time(0));
    flag=0;
    

    n1 = rand()%(R2-R1+1)+R1;
    printf("猜猜2023年4月哪一天会是你的lucky day\n");
    printf("开始喽，你有三次机会，猜吧（1-30）:");
    
    
    for(i=1;i<=N;i++)
    {
        scanf("%d", &n2);
        if(n2==n1){
            printf("哇，猜中了：-\n");
            break;
        }
        else if(n2>n1)
        printf("你猜的日期晚了，你的lucky day已经过啦\n");
        else
        printf("你才的日期早了，你的lucky day还没到呢\n");
        printf("再猜（1-30):");
        flag++;
         
    }
    
    if(flag==3)
    printf("次数用完啦，偷偷告诉你：4月，你的lucky day是%d号\n",n1);
    
    
    return 0;
}

 

 实验任务6 task6.c

#include<stdio.h>
int main()
{
    
    int line,column;
    for(line=1;line<=9;line++){
        for(column=1;column<=line;column++){
            printf("%d*%d=%d\t",column,line,line*column);
        }
        printf("\n");
    }
        
        return 0;
    
}

 实验任务7 task6.cp

 

#include<stdio.h>
#include<stdlib.h> 
int main()
{
    int n;
    printf("input n:");
    scanf("%d",&n);
    for(int i=n;i>0;i--) 
    
    {
        for(int j=0;j<n-i;j++)
        {
            printf("\t");
            
            
        }
        for(int k=0;k<2*i-1;k++)
        {
            printf(" O \t");
            
            
        }
        printf("\n");
        for(int j=0;j<n-i;j++)
        {
            printf("\t");
            
            
        }
        for(int k=0;k<2*i-1;k++)
        {
            
            printf("I I\t");
            
            
        }
        printf ("\n");
        
        
    }
    return 0;
}

 

 

标签：include,return,int,scanf,实验,printf,main
From： https://www.cnblogs.com/changdudingqing/p/17234050.html