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Python类成员和实例成员
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CONNECT:[ UseTime:0.000511s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000718s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.002082s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001050s ]
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0.170288s