自己看注释

#include <bits/stdc++.h> using namespace std; int main(){ cout << " * " << endl; cout << " * * " << endl; cout << " * * " << endl; cout << "* *" << endl; cout << " * * " << endl; cout << " * * " << endl; cout << " * " << endl; }

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

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

printf使我头痛，还是乖乖用cout吧

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

print(''' * * * * * * * * *''')

#include <bits/stdc++.h> using namespace std; int main(){ cout << " *" << endl; cout << " * *" << endl; cout << " * " << endl; cout << " *" << endl; cout << " * *" << endl; cout << " * *" << endl; cout << " *" << endl; return 0; }

#include <bits/stdc++.h> using namespace std; int main(){ cout << " *" << endl; cout << " * *" << endl; cout << " * " << endl; cout << " *" << endl; cout << " * *" << endl; cout << " * *" << endl; cout << " *" << endl; return 0; }