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实验2

时间:2024-04-14 23:33:58浏览次数:17  
标签:include int 实验 printf input main

实验一

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define N 5
int main(){
    int number;
    int i;

    srand(time(0));
    for(i=0;i<N;++i){
        number=rand()%65+1;
        printf("20238331%04d\n",number);
    }
    system ("pause");
    return 0;
}

问题1:随机生成一个1-65之间的数字

问题2:随机生成5个班级学号

实验2

#include<stdio.h>
#include<stdlib.h>

int main()
{
char input;
while(1)
{
    scanf("%c", &input);
    switch(input)
        {
        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;            
        }
    getchar();    
    }
    system("pause");
    return 0;
}
    

实验3

#include<stdio.h>
#include<stilib.h>
#include<time.h>
#define N 5

int main()
   {
       int number;
       
       srand(time(0));
       
       while(1)
       {
           for(i=1;i<=3,++i)
        scanf("%d",&number);
           
       }
    
    
} 

实验4

#include<stdio.h>

int main(){
    int n;
    double s;
    int i;
    int item;
    int a;
    int j;
    while (scanf("%d%d", &n, &a)!=EOF)
    {
        s=0.0;
    for(i=1;i<=n;++i){
       item=0;
       for(j=1;j<=i;++j)
        item=item*10+1;
    s+=(double)i/(a*item);}
    printf("n=%d,a=%d,s=%lf\n",n,a,s);
    
    }
    
    return 0;
    }

实验5

#include<stdio.h> 

int main(){
    int line=9;
    int value;
    int i;
    int j;
    for(i<=1;i<=line;++i)
    {
        
        for(j=1;j<=i;j++)
        {
            value=i*j;
            printf("%d×%d=%2d\t",j,i,i*j);
        }
        printf("\n");
    }
    return 0;
}

实验6

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int n,i,j,k;
    printf("input n:");
    scanf("%d",&n);

    for(i=0;i<n;++i){
        for (j=1;j<=i;++j)
        printf("\t");
        for(k=2*(n-i)-1;k>0;--k)
        printf("  O\t");
        printf("\n");
        for(j=1;j<=i;++j)
        printf("\t");
        for(k=2*(n-i)-1;k>0;--k)
        printf(" <H>\t");
        printf("\n");
        for(j=1;j<=i;++j)
        printf("\t");
        for(k=2*(n-i)-1;k>0;--k)
        printf(" I I\t");
        printf("\n");}
    
    return 0;

}

标签:include,int,实验,printf,input,main
From: https://www.cnblogs.com/hzxh2005/p/18134913

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