work
#include<iostream>
using namespace std;
int main()
{
int i;
cout<<"please enter one member 1 to 7..."<<endl;
do{
cin>>i;
if(i<1||i>7)
{
cout<<"input error,out of range...please input again..."<<endl;
}
}while(i<1||i>7);
switch(i)
{
case 1:
case 2:
case 3:
case 4:
case 5:
cout<<"workday,let's work hard\n"<<endl;break;
case 6:
case 7:
cout<<"weekend,let's have a rest...\n"<<endl;break;
}
return 0;
}
![](https://images2018.cnblogs.com/blog/1350350/201803/1350350-20180314204512841-1938046394.png)
#include<iostream>
using namespace std;
int main()
{
int i;
int answer=0;
cout<<"please input a number "<<endl;
cin>>i;
while(i!=0)
{
answer*=10;
answer+=i%10;
i/=10;
}
cout<<"answer is "<<answer<<endl;
return 0;
}
![](https://images2018.cnblogs.com/blog/1350350/201803/1350350-20180314204537597-431160097.png)