C++Primer第四版课后练习解答习题1.4

1 #include
2
3 int main()
4 {
5 std::cout <<"Enter two numbers:" << std::endl;
6 int v1, v2;
7 std::cin >> v1 >> v2;
8 std::cout <<"The product of" <" and " << v2
9 <<"is " < std::endl;
10
11 return 0;
12 }

1 #include
2 using namespace std;
3 int main()
4 {
5 cout <<"Enter two numbers:" << endl;
6 int v1, v2;
7 cin >> v1 >> v2;
8 cout <<"The product of" <" and " << v2
9 <<" is " < endl;
10
11 return 0;
12 }

1 #include
2 #include<string>
3 using namespace std;
4
5 int main()
6 {
7 string rsp;
8 do
9 {
10 cout <<"Please enter two values: ";
11 int val1, val2;
12 cin >> val1 >> val2;
13 cout <<"The product of "
14 <" and " << val2
15 <<" &＃61; " <"\n\n"
16 <<"More?[Yes][No]";
17 cin >> rsp;
18 } while (!rsp.empty() && (rsp[0] !&＃61; &＃39;n&＃39;) && (rsp[0] !&＃61; &＃39;N&＃39;));
19 return 0;
20 }