你可能會發(fā)現(xiàn)以下函數(shù)和反匯編有助于理解操作符：>>> def test():

if 0 in (): pass

if 0 not in (): pass

if 0 is (): pass

if 0 is not (): pass

return None

>>> dis.dis(test)

2 0 LOAD_CONST 1 (0)

3 LOAD_CONST 2 (())

6 COMPARE_OP 6 (in)

9 POP_JUMP_IF_FALSE 15

12 JUMP_FORWARD 0 (to 15)

3 >> 15 LOAD_CONST 1 (0)

18 LOAD_CONST 3 (())

21 COMPARE_OP 7 (not in)

24 POP_JUMP_IF_FALSE 30

27 JUMP_FORWARD 0 (to 30)

4 >> 30 LOAD_CONST 1 (0)

33 LOAD_CONST 4 (())

36 COMPARE_OP 8 (is)

39 POP_JUMP_IF_FALSE 45

42 JUMP_FORWARD 0 (to 45)

5 >> 45 LOAD_CONST 1 (0)

48 LOAD_CONST 5 (())

51 COMPARE_OP 9 (is not)

54 POP_JUMP_IF_FALSE 60

57 JUMP_FORWARD 0 (to 60)

6 >> 60 LOAD_CONST 0 (None)

63 RETURN_VALUE

>>>

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