switch语句…

 #include<bits/stdc++.h>
using namespace std;
int main(){
    int ddd;
    cin>>ddd;
    switch(ddd){
        case 61:cout<<"Brasilia";break;
        case 71:cout<<"Salvador";break;
        case 11:cout<<"Sao Paulo";break;
        case 21:cout<<"Rio de Janeiro";break;
        case 32:cout<<"Juiz de Fora";break;
        case 19:cout<<"Campinas";break;
        case 27:cout<<"Vitoria";break;
        case 31:cout<<"Belo Horizonte";break;
        default:cout<<"DDD nao cadastrado";break;
    }
    return 0;
}