python file operate example - 1
本文示例, python对文本的操作. 先从数据库搞一些测试数据到文件中postgres=# copy (select generate_series(1,1000)||','||md5(random()::text)) to '/home/postgres/test.txt'; COPY 1000 内容示例postgres@localhost-> less /home/postgres/....
python file operate example - 2
接上一篇文件操作例子, 这里主要是写入文件的例子. 将test.txt按照key的奇数和偶数分类写入两个文件. http://blog.163.com/digoal@126/blog/static/1638770402015027102245601/postgres@localhost-> vi test.py import os # 导入os模块 even=[] # 定义两个lis...
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