#P1
>>> n = (1,2,3,4,5,6,7,8,9,0)
>>> for n in n[0:4]:
print(n)
1
2
3
4
#P2
>>> for n in n[1:4]:
print(n)
Traceback (most recent call last):
File "<pyshell#43>", line 1, in <module>
for n in n[1:4]:
TypeError: 'int' object is not subscriptable
P1、P2有什么区别?为什么会出现这样的区别?
P2为什么会出问题?