[Tutor] Q?

[deng wei]

tutorHello:
  The Python said this is wrong.But I think it's right.Why?

	# The while practice:
	a=['hello','world','i','am','a','worker']
	i=0
	while i<len(a):
		b[i]=a[len(a)-i]
		i=i+1
	print b


                  

            DengWei
            deng@ms.shlftdc.net.cn