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Python| if-elif-else语句,这样学才高效

2026-06-30 14:14:50

Python| if-elif-else语句,这样学才高效

Python| if-elif-else语句，这样学才高效

刚接触 Python 的宝子，是不是一看到if-elif-else就头晕？其实它是 Python条件判断的核心，写代码做逻辑选择全靠它！比如 “如果满足 A 就做这件事，否则如果满足 B 就做那件事，都不满足就做别的”，生活里的逻辑搬到代码里，超简单，一图看懂！#编程入门 #python #python学习 #编程学习新方式 #python基础知识

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CONNECT:[ UseTime:0.000517s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000610s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000643s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000443s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000587s ]
SELECT * FROM `set` [ RunTime:0.015768s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000708s ]
SELECT * FROM `article` WHERE `id` = 486847 LIMIT 1 [ RunTime:0.000656s ]
UPDATE `article` SET `lasttime` = 1783086328 WHERE `id` = 486847 [ RunTime:0.011901s ]
SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000650s ]
SELECT * FROM `article` WHERE `id` < 486847 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001420s ]
SELECT * FROM `article` WHERE `id` > 486847 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002188s ]
SELECT * FROM `article` WHERE `id` < 486847 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.013559s ]
SELECT * FROM `article` WHERE `id` < 486847 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.017817s ]
SELECT * FROM `article` WHERE `id` < 486847 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003733s ]

0.180041s

ShowPageTrace