输入输出练习之输出图案题解

解题思路:

注意事项:

参考代码:

#include<iostream>

using namespace std;

int main()

{

char a;

cin>>a;

cout<<" "<<" "<<a<<" "<<" "<<endl;

cout<<" "<<a<<a<<a<<" "<<endl;

cout<<a<<a<<a<<a<<a<<endl;

return 0;

}