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新手必学 Python 库入门,看完直接会导包、会用库

2026-06-30 10:26:53

新手必学 Python 库入门,看完直接会导包、会用库

从零基础学Python，学会用库，不用从零写代码，直接“拿来就用”，轻松实现复杂功能，搭配之前学的基础语法，编程效率直接翻倍。

📚核心认知：Python库就是“现成的代码工具包”，是写好的、可直接调用的功能集合，就像我们做饭不用自己种蔬菜、做厨具，直接用现成的食材和工具，省时又省力，新手也能快速做出“复杂菜品”！

今天带大家从Python 库入门，import 用法 + 常用库！

📌文章篇幅受限，相对应的Python教程、课件源码、学习笔记，已打包好📦，有需要可管🐷厚台发“111”即可拿走！会手把手带你学技术，上手实操！

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CONNECT:[ UseTime:0.000764s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000839s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.001281s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.005684s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000664s ]
SELECT * FROM `set` [ RunTime:0.000393s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000618s ]
SELECT * FROM `article` WHERE `id` = 493236 LIMIT 1 [ RunTime:0.005452s ]
UPDATE `article` SET `lasttime` = 1783082789 WHERE `id` = 493236 [ RunTime:0.004319s ]
SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.001629s ]
SELECT * FROM `article` WHERE `id` < 493236 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000439s ]
SELECT * FROM `article` WHERE `id` > 493236 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003560s ]
SELECT * FROM `article` WHERE `id` < 493236 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002181s ]
SELECT * FROM `article` WHERE `id` < 493236 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002392s ]
SELECT * FROM `article` WHERE `id` < 493236 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002225s ]

0.113451s

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