Python 帮助求 i 的值

Question

当a为6时，循环体末尾的i的值是多少？

def loopIdentification():
    i=0
    for a in range(2,8):
        i=i+a-3
    return i

Answer 1

5

>>> def loopIdentification():
    i=0
    for a in range(2,8):
        i=i+a-3
        print a, i
    return i

>>> loopIdentification()
2 -1
3 -1
4 0
5 2
6 5
7 9
9