#include<stdio.h> int main(){ int x; printf("输入一个整数:\n"); scanf("%d",&x); if(x%2==0) printf("是偶数"); else printf("是奇数"); return 0; }
#include<stdio.h> int main(){ int days; printf("输入一个整数:\n"); scanf("%d",&days); if(1<=days&&days<=5) printf("workdays,fighting\n"); else if(days==6||days==7) printf("weekend,relax~\n"); else printf("0oops,not in 1~7\n"); return 0; }
#include<stdio.h> int main(){ char ch; printf("输入一个字符:\n"); scanf("%c",&ch); if(ch>='a'&&ch<='z') printf("%c\n",ch=ch-32); else printf("%c",ch); return 0; }