题解：#8.打印字符三角形(仅供参考!!!) 审核通过

#include<bits/stdc++.h>//这是万用头文件,也能用#include using namespace std; 
int main(){
char a;//定义字符
cin>>a;//询问字符 
cout<<" "<<a<<" "<<endl;//打印字符 
cout<<" "<<a<<" "<<a<<endl;//打印字符 
cout<<a<<" "<<a<<" "<<a<<" "<<endl;//打印字符 
return 0;//不加也行 
}