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中国电子学会Python 二级核心考点

  • 2026-02-07 07:46:47
中国电子学会Python 二级核心考点

中国电子学会Python二级考点聚焦组合数据类型、流程控制、函数应用、文件操作、标准库使用,以下为核心要点与记忆点。

一、核心数据类型(必考)


• 列表:创建、索引/切片、增删改查、排序、推导式、遍历

• 元组:创建、访问、不可变特性、与列表区别

• 字符串:索引/切片、split/join、replace、format、len、遍历

• 字典:键值对操作、get()、keys()/values()/items()、遍历

• 补充:range用法、类型判断与转换、可变vs不可变类型差异

二、流程控制(高频)


• 分支:单/双/多分支(if-elif-else)、条件表达式

• 循环:for(配合range)、while、break/continue

• 异常处理:try-except基础应用

三、函数进阶(重点)


• 定义与调用、返回多值、默认参数、关键字参数

• 递归思想与简单递归实现

• 变量作用域:局部vs全局(global)

四、文件与数据格式化(基础)


• 文件操作:open(r/w/a)、read/write、close、with语句

• 一维/二维数据处理、CSV读写基础

五、标准库应用(实操)


• turtle:绘图基础(前进、转向、颜色、填充)

• random:randint、random、choice、shuffle

• time:基础时间函数(可选)

• 内置函数:print、input、eval、len、range、type等

六、综合应用(易错)


• 列表+循环+条件的嵌套逻辑

• 字典统计(如词频)

• 简单递归(如阶乘、斐波那契)

• 函数参数灵活运用

• 异常处理的简单场景

速记与备考建议

• 核心必掌握:列表、字典、循环、函数;高频实操:turtle、文件读写

• 区分易混点:list.sort() vs sorted()、元组不可修改、字典键唯一且不可变

• 备考路径:先练基础语法→模块专项→综合编程→真题模考

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  139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.001015s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001445s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.009334s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.009275s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001435s ]
  6. SELECT * FROM `set` [ RunTime:0.015234s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001519s ]
  8. SELECT * FROM `article` WHERE `id` = 474075 LIMIT 1 [ RunTime:0.037427s ]
  9. UPDATE `article` SET `lasttime` = 1770432884 WHERE `id` = 474075 [ RunTime:0.034910s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000760s ]
  11. SELECT * FROM `article` WHERE `id` < 474075 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001873s ]
  12. SELECT * FROM `article` WHERE `id` > 474075 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.005155s ]
  13. SELECT * FROM `article` WHERE `id` < 474075 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.030659s ]
  14. SELECT * FROM `article` WHERE `id` < 474075 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001790s ]
  15. SELECT * FROM `article` WHERE `id` < 474075 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002756s ]
0.301178s