题解 | #空心正方形图案#感觉很难

感觉很难

while 1:
    try:
        n = int(input())
        for i in range(0,n):
            for j in range(0,n):
                if i==0 or i ==n-1:
                    print("* ",end="")
                elif j==0 or j==n-1:
                    print("* ",end="")
                else:
                    print("  ",end="")
            print()
        
    except:
        break