1. In Python, you can use `metaclass` to create custom class creation behavior.
在Python中,你可以使用`metaclass`来创建自定义的类创建行为。
2. Understanding metaclasses is essential for advanced Python programming.
对于高级Python编程来说,理解元类是必不可少的。
SHOW FULL COLUMNS FROM `tool_word` [ RunTime:0.001278s ]
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UPDATE `tool_word` SET `views` = `views` + 1 WHERE `id` = 57313 [ RunTime:0.002060s ]
SELECT `id`,`word` FROM `tool_word` WHERE `id` IN (17131,47369,55662,65864,2515,49689,30769,54902,93770,515,71671,80855,77999,15266,47330,22761,52813,29915,22757,6763,78259,62158,90751,57140,72822,88515,70354,81533,71848,11415) AND `switch` = 1 ORDER BY `id` DESC [ RunTime:0.000870s ]
SELECT `id`,`word` FROM `tool_word` WHERE `id` < 57313 AND `switch` = 1 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000403s ]
SELECT `id`,`word` FROM `tool_word` WHERE `id` > 57313 AND `switch` = 1 ORDER BY `id` LIMIT 1 [ RunTime:0.000610s ]