博客

#include <iostream>
using namespace std;
int main()
{
    int month;
    cin>>month;
    switch(month)
    {
        case 1:
            {
                cout<<"January 31天"<<endl;break; 
            }
        case 2:
            {
                cout<<"February 28天"<<endl;break; 
            }
        case 3:
            {
                cout<<"March 31天"<<endl;break; 
            }
        case 4:
            {
                cout<<"April 30天"<<endl;break;
            }
        case 5:
            {
                cout<<"May 31天"<<endl;break; 
            }
        case 6:
            {
                cout<<"June 30天"<<endl;break; 
            }
        case 7:
            {
                cout<<"July 31天"<<endl;break; 
            }
        case 8:
            {
                cout<<"August 31天"<<endl;break; 
            }
        case 9:
            {
                cout<<"September 30天"<<endl;break;
            }
        case 10:
            {
                cout<<"October 31天"<<endl;break; 
            }
        case 11:
            {
                cout<<"November 30天"<<endl;break;
            }
        case 12:
            {
                cout<<"December 31天"<<endl;break;
            }
}
return 0;
 }