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

谢谢，简单到不用注释*3：

print(" * ") print(" * * ") print(" * * ") print("*******")

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

#include <bits/stdc++.h>万能头文件 using namespace std; int main(){ 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; return 0; }

十分暴力的解法

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

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

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

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