- 本帖最後由 蔡少宇 於 2019-6-27 17:02 編輯
- #include<iostream>
- #include<cstdlib>
- using namespace std;
- int main()
- {
- int ans;
- re:
- cout<<"請輸入1,2或3: ";
- cin>>ans;
- switch(ans)
- {
- case 1:
- cout<<"您剛才輸入的是1 "<<endl;
- break;
- case 2:
- cout<<"您剛才輸入的是2 "<<endl;
- break;
- case 3:
- cout<<"您剛才輸入的是3 "<<endl;
- break;
- default:
- cout<<"沒有這個選項"<<endl;
- }
- cout<<endl;
- goto re;
- system("pause");
- return 0;
- }
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