201983270565 实验1

 

#include <stdio.h>
int main()
{
int x ; 
    printf("输入一个整数：\n"); 
    scanf("%d",&x); 
    if(x%2)
       printf("是奇数"); 
    else 
       printf("是偶数"); 
    
    return 0;      
    
    
} 

#include <stdio.h> 
int main()
{
int days  ; 
    printf("输入一个整数：\n"); 
    scanf("%d",&days); 
    if(days>0&&days<6)
       printf("workdays,fighting\n"); 
    else if(days==6||days==7) 
       printf("weekend,relax~\n"); 
    else
        printf("Ooop,not in 1~7\n"); 
    return 0;      
    
    
} 

#include <stdio.h>
int main()
{
  char ch;
  printf("输出一个字符：\n");
scanf("%c",&ch); 
if(ch>=97&&ch<=122)
ch=ch-32;
printf("%c\n",ch);
   
    return 0;      
    
    
} 

#include <stdio.h>
int main()
{
printf("201983270565\n");
   
    return 0;      
    
    
} 

exe.1

 

 

 

 exe.2

 

 

 

 

 

 

 

 

exe.3

 

 

 

 

 

 exe4.