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练完这80个函数代码,你的Numpy就牛了!

  • 2026-01-30 18:12:48
练完这80个函数代码,你的Numpy就牛了!

Numpy，是Python中基于数组对象的科学计算库。它是Python语言的一个扩展程序库，支持大量的维度数组与矩阵运算，以及大量的数学函数库。

Numpy 内容不多，常用函数就这些。今天分享下 Numpy 的80个常用函数。

数组创建函数

数组操作函数

数学函数

线性代数函数

统计函数

逻辑函数

随机数生成

数据类型操作

字符串连接

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  1. CONNECT:[ UseTime:0.000803s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001104s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000365s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000266s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000581s ]
  6. SELECT * FROM `set` [ RunTime:0.000246s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000646s ]
  8. SELECT * FROM `article` WHERE `id` = 463294 LIMIT 1 [ RunTime:0.000588s ]
  9. UPDATE `article` SET `lasttime` = 1770535295 WHERE `id` = 463294 [ RunTime:0.006899s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000260s ]
  11. SELECT * FROM `article` WHERE `id` < 463294 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000521s ]
  12. SELECT * FROM `article` WHERE `id` > 463294 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001726s ]
  13. SELECT * FROM `article` WHERE `id` < 463294 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001675s ]
  14. SELECT * FROM `article` WHERE `id` < 463294 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001085s ]
  15. SELECT * FROM `article` WHERE `id` < 463294 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003061s ]
0.092787s