for循环打印菱形

line =int(input('please input the lines(old number):'))

while line%2 ==0 or line<0:

line =int(input('the lines that you input is error!input again:'))

#打印上半部分

for iin range(1, (line+1)//2+1):

for jin range(1, line+1):

if i+j <= line//2+1 or j > i+line//2:

print(' ',end='')

else:

print('*',end='')

print('')

#打印下半部分

for iin range(1,line//2+1):

for jin range(1,line+1):

if j line:

print(" ",end='')

else:

print("*",end='')

print('')