c++第四次上机实验

#include <iostream>   
using namespace std;  
int main()  
{  
    int j,k;  
    for(j=1;j<6;j++)  
        cout<<" ";  
        cout<<"*"<<endl;  
    for(j=2;j<=5;j++)  
    {  
        for(k=1;k<=6-i;k++)  
            cout<<" ";  
            cout<<"*";  
        for(k=1;k<=2*i-3;k++)  
            cout<<" ";  
            cout<<"*"<<endl;  
          
    }  
    for(j=1;j<=11;j++)  
        cout<<"*";  
    cout<<endl;  
    return 0;  
}