1           0 LOAD_CONST               0 ('welcome_to_qsnctf_u_will_have_a_good_time!')
              3 STORE_NAME               0 (keys1)

  2           6 LOAD_CONST               1 (6)
              9 LOAD_CONST               2 (22)
             12 LOAD_CONST               3 (2)
             15 LOAD_CONST               4 (0)
             18 LOAD_CONST               5 (27)
             21 LOAD_CONST               6 (11)
             24 LOAD_CONST               7 (30)
             27 LOAD_CONST               8 (109)
             30 LOAD_CONST               9 (76)
             33 LOAD_CONST              10 (86)
             36 LOAD_CONST              11 (106)
             39 LOAD_CONST              12 (92)
             42 LOAD_CONST              13 (17)
             45 LOAD_CONST              14 (15)
             48 LOAD_CONST               1 (6)
             51 LOAD_CONST               9 (76)
             54 LOAD_CONST              15 (94)
             57 LOAD_CONST              16 (102)
             60 LOAD_CONST              17 (23)
             63 LOAD_CONST              18 (105)
             66 LOAD_CONST              19 (70)
             69 LOAD_CONST              20 (68)
             72 LOAD_CONST              21 (84)
             75 LOAD_CONST              22 (85)
             78 LOAD_CONST              23 (104)
             81 LOAD_CONST              24 (12)
             84 LOAD_CONST              25 (89)
             87 LOAD_CONST              26 (79)
             90 LOAD_CONST              27 (82)
             93 LOAD_CONST              28 (62)
             96 LOAD_CONST              29 (4)
             99 LOAD_CONST              30 (108)
            102 LOAD_CONST              31 (3)
            105 LOAD_CONST              32 (66)
            108 LOAD_CONST              33 (91)
            111 LOAD_CONST              21 (84)
            114 LOAD_CONST              34 (59)
            117 LOAD_CONST              35 (18)
            120 LOAD_CONST              36 (93)
            123 LOAD_CONST              37 (9)
            126 LOAD_CONST              31 (3)
            129 LOAD_CONST              12 (92)
            132 BUILD_LIST              42
            135 STORE_NAME               1 (keys2)

  3         138 LOAD_CONST              38 ('')
            141 STORE_NAME               2 (flag)

  4         144 SETUP_LOOP              95 (to 242)  //开始一个循环
            147 LOAD_NAME                3 (range)
            150 LOAD_CONST               4 (0)
            153 LOAD_NAME                4 (len)
            156 LOAD_NAME                0 (keys1)
            159 CALL_FUNCTION            1
            162 CALL_FUNCTION            2
            165 GET_ITER            
        >>  166 FOR_ITER                72 (to 241)
            169 STORE_NAME               5 (i)

  5         172 LOAD_NAME                2 (flag)
            175 LOAD_NAME                6 (chr)
            178 LOAD_NAME                7 (ord)
            181 LOAD_NAME                0 (keys1)
            184 LOAD_NAME                5 (i)
            187 BINARY_SUBSCR       
            188 CALL_FUNCTION            1
            191 LOAD_NAME                1 (keys2)
            194 LOAD_NAME                5 (i)
            197 BINARY_SUBSCR       
            198 BINARY_XOR          
            199 LOAD_NAME                1 (keys2)
            202 LOAD_NAME                5 (i)
            205 BINARY_SUBSCR       
            206 BINARY_XOR          
            207 LOAD_NAME                1 (keys2)
            210 LOAD_NAME                5 (i)
            213 BINARY_SUBSCR       
            214 BINARY_XOR          
            215 LOAD_NAME                1 (keys2)
            218 LOAD_NAME                5 (i)
            221 BINARY_SUBSCR       
            222 BINARY_XOR          
            223 LOAD_NAME                1 (keys2)
            226 LOAD_NAME                5 (i)
            229 BINARY_SUBSCR       
            230 BINARY_XOR          
            231 CALL_FUNCTION            1
            234 INPLACE_ADD         
            235 STORE_NAME               2 (flag)
            238 JUMP_ABSOLUTE          166
        >>  241 POP_BLOCK           

  6     >>  242 LOAD_NAME                2 (flag)
            245 PRINT_ITEM          
            246 PRINT_NEWLINE       
            247 LOAD_CONST              39 (None)
            250 RETURN_VALUE