C语言编程练习-选择结构-某年某月的天数
某年某月的天数#include <stdio.h>int main(){ int year,month,day; scanf("%d\\%d",&year,&month); switch(month){ case 2: if(year%400==0||year%4==0&&year%100!=0) day=29; else day=28; break; ca
