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Python列表赋值陷阱,你能答对吗?

  • 2026-06-25 13:02:17
Python列表赋值陷阱,你能答对吗?

🔥 90%程序员都踩过的坑这行代码输出啥？你能答对吗？#Python #编程挑战 #每日一题---🐍 Python猜结果 第0001期猜猜下面代码输出什么？

a = [1, 2, 3]b = ab.append(4)print(a)

A. [1, 2, 3, 4]B. [1, 2, 3]C. [4]D. None👇评论区留下你的答案！别偷看评论！——————————#Python#Python学习#Python编程#程序员#编程

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  1. CONNECT:[ UseTime:0.000553s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000805s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000295s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000278s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000475s ]
  6. SELECT * FROM `set` [ RunTime:0.000195s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000562s ]
  8. SELECT * FROM `article` WHERE `id` = 501075 LIMIT 1 [ RunTime:0.000470s ]
  9. UPDATE `article` SET `lasttime` = 1783006017 WHERE `id` = 501075 [ RunTime:0.015407s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000395s ]
  11. SELECT * FROM `article` WHERE `id` < 501075 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.007017s ]
  12. SELECT * FROM `article` WHERE `id` > 501075 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.004390s ]
  13. SELECT * FROM `article` WHERE `id` < 501075 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000706s ]
  14. SELECT * FROM `article` WHERE `id` < 501075 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003261s ]
  15. SELECT * FROM `article` WHERE `id` < 501075 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.009638s ]
0.121082s