输入字符需要用char来定义变量，用int 、float会报错

#include <iostream>
using namespace std;
int main(){
	char  ch;
	cin>>ch;
	cout<<"  "<<ch<<endl;
	cout<<" "<<ch<<ch<<ch<<endl;
	cout<<ch<<ch<<ch<<ch<<ch;
	return 0;
}

#include<iostream>
using namespace std;
int main()
{
	char x;
	cin>>x;
	cout<<"  "<<x<<endl;
	cout<<" "<<x<<x<<x<<endl;
	cout<<x<<x<<x<<x<<x<<endl;
	return 0;
}

#include 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; }

#include<iostream>
using namespace std;
int main()
{
	char x;
	cin>>x;
	cout<<"  "<<x<<endl;
	cout<<" "<<x<<x<<x<<endl;
	cout<<x<<x<<x<<x<<x<<endl;
	return 0;
}

• #include<iostream>
  using namespace std;
  int main()
  {
  	char x;
  	cin>>x;
  	cout<<"  "<<x<<endl;
  	cout<<" "<<x<<x<<x<<endl;
  	cout<<x<<x<<x<<x<<x<<endl;
  	return 0;
  }
  

  Copy *

#include<iostream>
using namespace std;
int main()
{
	char x;
	cin>>x;
	cout<<"  "<<x<<endl;
	cout<<" "<<x<<x<<x<<endl;
	cout<<x<<x<<x<<x<<x<<endl;
	return 0;
}

#include<iostream>
using namespace std;
int main()
{
	char x;
	cin>>x;
	cout<<"  "<<x<<endl;
	cout<<" "<<x<<x<<x<<endl;
	cout<<x<<x<<x<<x<<x<<endl;
	return 0;
}

#include using namespace std; int main(){ char ch; cin>>ch; cout<<" "<<ch<<endl; cout<<" "<<ch<<ch<<ch<<endl; cout<<ch<<ch<<ch<<ch<<ch; return 0; }

#include<iostream>
using namespace std;
int main()
{
	char x;
	cin>>x;
	cout<<"  "<<x<<endl;
	cout<<" "<<x<<x<<x<<endl;
	cout<<x<<x<<x<<x<<x<<endl;
	return 0;
}

提示：不是要直接打出***的三角形 有可能是###，%%%，具体打出来什么样子的三角形看输入的字符是什么？

空格也是武器哦👀️

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