QQ扫一扫联系
执行以下程序，输出结果是( )。
int cls = 2;
char ht = 'A';
switch (cls)
{
case 1:
cout << "by train";
switch (ht)
{
case 'A': cout << "****"; break;
case 'B': cout << "***"; break;
default: cout << "**";
}
break;
case 2:
cout << "by plane";
switch (ht)
{
case 'A': cout << "*****"; break;
case 'B': cout << "****"; break;
default: cout << "***";
}
break;
default:
cout << "by bus";
cout << "**";
}
by train****
by plane*****
by plane****
by bus**
