题解

别少打了

#include <iostream>
using namespace std;

int main(){
    cout<<"      *"<<endl;
    cout<<"    *   *"<<endl;
    cout<<"  *       *"<<endl;
    cout<<"*           *"<<endl;
    cout<<"  *       *"<<endl;
    cout<<"    *   *"<<endl;
     cout<<"      *";
    return 0;
}