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python—文件

  • 2026-03-20 16:45:19
python—文件

python—文件

python的文件操作将会分成以下方式

1.打开文件

a.增加文件

b.删除文件

2.修改文件            1. 读取文件            2. 写入文件            3. 关闭文件            以文本文件为例对文件进行修改            更新 目录为

3.打开文件

a.关闭文件

4.读取文件

5.写入文件

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  1. 请求信息 : 2026-03-27 09:55:38 HTTP/2.0 GET : https://f.mffb.com.cn/a/479521.html
  2. 运行时间 : 0.121055s [ 吞吐率：8.26req/s ] 内存消耗：4,408.38kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=07771c31029720c299d3f0b23c9afe07
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  1. CONNECT:[ UseTime:0.000459s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000744s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000335s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000314s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000488s ]
  6. SELECT * FROM `set` [ RunTime:0.000205s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000603s ]
  8. SELECT * FROM `article` WHERE `id` = 479521 LIMIT 1 [ RunTime:0.000403s ]
  9. UPDATE `article` SET `lasttime` = 1774576538 WHERE `id` = 479521 [ RunTime:0.005109s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000232s ]
  11. SELECT * FROM `article` WHERE `id` < 479521 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000447s ]
  12. SELECT * FROM `article` WHERE `id` > 479521 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000394s ]
  13. SELECT * FROM `article` WHERE `id` < 479521 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000675s ]
  14. SELECT * FROM `article` WHERE `id` < 479521 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000901s ]
  15. SELECT * FROM `article` WHERE `id` < 479521 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000717s ]
0.122853s