putchar()

 1 1,#include<iostream>
 2 using namespace std;
 3 int main()
 4 {
 5     char c1, c2;
 6     cout << "请输入两个字符c1,c2:";
 7     c1 = getchar();
 8     c2 = getchar();
 9     cout << "用putchar输出的结果:";
10     putchar(c1);
11     putchar(c2);
12     cout << endl;
13     cout << "用cout语句输出的结果为:";
14     cout << c1 << c2 << endl;
15     system("pause");
16     return 0;
17 }
18 2,#include <iostream>
19 using namespace std;
20 int main()
21 {
22     char c1, c2;
23     cout << "请输入两个字符c1,c2:";
24     c1 = getchar();        //将输入的第一个字符赋给c1
25     c2 = getchar();        //将输入的第二个字符赋给c2 
26     cout << "用putchar函数输出结果为:";
27     putchar(c1);
28     putchar(44);
29     putchar(c2);
30     cout << endl;
31     cout << "用cout语句输出结果为:";
32     cout << c1 << "," << c2 << endl;
33     system("pause");
34     return 0;
35 }
36 3,