python-----矩形边框

矩形边框：
[root@python py]# vim  biankuan.py 

#!/usr/bin/env python3

line = int(input("请输入一个数字： "))
for i in range(line):
    if i == 0 or i == line-1:
        for j in range(line):
            print("*",end="")
    else:
        for j in range(line):
            if j == 0 or j == line-1:
                print("*",end="")
            else:
                print(" ",end="")
    print("")
~               

[root@python py]# python biankuan.py 
请输入一个数字： 10
**********
*        *
*        *
*        *
*        *
*        *
*        *
*        *
*        *
**********