Python---打印奇数行

line = int(input(‘请输入一个数字’))
for i in range(1,line+1):
if i < (line+1)/2:
print(’’,’ '(line-i),’’)
if i == (line+1)/2:
m = 1
for m in range(1, line+1):
print(’’,’ ‘(m+1),’’,)
m += 1