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【计算机二级 Python・每日 10 考点】Day4

  • 2026-02-17 03:47:32
【计算机二级 Python・每日 10 考点】Day4
🍀 考点 31：缩进是可以嵌套的，从而形成多层缩进。
🍀 考点 32：缩进：在逻辑行首的空白（空格和制表符）用来决定逻辑行的缩进层次，从而用来决定语句的分组。这意味着同一层次的语句必须有相同的缩进，不是同一层次的语句不需要缩进。
🍀 考点 33：不是所有代码行前都要加空格。
🍀 考点 34：所有的 if、while、def、class 语句后面都要用 “:” 冒号结尾。
🍀 考点 35：Python 的保留字是大小写敏感的，True 是保留字，但 true 不是保留字。
🍀 考点 36：如果 Python 程序执行时产生了 “unexpected indent” 错误，其原因可能是代码缩进不正确。（“unexpected indent” 翻译成中文就是意外缩进）
🍀 考点 37：缩进的空格数量可以任意，但同一个层级，数量必须一致。
🍀 考点 38：在 Python 语言中，赋值不需要两侧数据类型一致，在赋值操作之后，左侧变量将会自动变成右侧对应的数据类型。
🍀 考点 39：使用符号 “=” 表达赋值关系。
🍀 考点 40：a, b = b, a 可以交换 a 和 b 的值
今日分享到此结束，希望对你有用
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  1. CONNECT:[ UseTime:0.000411s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000724s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000313s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000244s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000530s ]
  6. SELECT * FROM `set` [ RunTime:0.000188s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000682s ]
  8. SELECT * FROM `article` WHERE `id` = 475153 LIMIT 1 [ RunTime:0.000307s ]
  9. UPDATE `article` SET `lasttime` = 1771286753 WHERE `id` = 475153 [ RunTime:0.002188s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000201s ]
  11. SELECT * FROM `article` WHERE `id` < 475153 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000502s ]
  12. SELECT * FROM `article` WHERE `id` > 475153 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000464s ]
  13. SELECT * FROM `article` WHERE `id` < 475153 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002812s ]
  14. SELECT * FROM `article` WHERE `id` < 475153 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.008477s ]
  15. SELECT * FROM `article` WHERE `id` < 475153 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001749s ]
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