在Python中保持变量值

Question

for i in range(0,3):
    j = 0
    print 'incrementing '
    j += 1
    print j

版画

incrementing 
1
incrementing 
1
incrementing 
1

如何保持'j'的值以便打印:

1
2
3

Answer 1

你不应该j在循环中重置为零:

j = 0
for i in range(0,3):
    print 'incrementng '
    j += 1
    print j