从1到N遍历比从0到N遍历还是好理解一些
n = int(input())
for i in range(1,n+1):
for j in range(1,n+1):
if j==1 or j==i or i==n:
print("* ",end="")
else:
print(" ",end="")
print()
从1到N遍历比从0到N遍历还是好理解一些
n = int(input())
for i in range(1,n+1):
for j in range(1,n+1):
if j==1 or j==i or i==n:
print("* ",end="")
else:
print(" ",end="")
print()