二叉树的三种遍历方式(递归和非递归)

二叉树遍历 递归 非递归 前根序 中根序 后根序

阅读全文>> 2017-12-02 10:03:25      编辑     阅读量:343

使用Elasticsearch做关键字自动补全--completion suggester

搜索引擎的自动补全,本文基于搜索历史进行补全,适用于拥有大量数据的搜索引擎。但只支持前缀补全

阅读全文>> 2017-10-31 02:42:08      编辑     阅读量:972

Elasticsearch 5.x 字段折叠的使用,就是针对某一field去重

在 Elasticsearch 5.x 有一个字段折叠(Field Collapsing,[#22337](

阅读全文>> 2017-10-31 02:38:54      编辑     阅读量:1263

SQLAlchemy的使用

---参考:- [1][SQLAlchemy连接池问题](http://blog.lea

阅读全文>> 2017-10-27 10:49:28      编辑     阅读量:1113

Python设置函数调用超时timout

在写python代码时,常常想有没有办法加个timeout参数,避免函数执行时间过久,目前在linux下找到

阅读全文>> 2017-10-27 10:26:17      编辑     阅读量:724

使用psdash监控系统

psdash 是一款查看 Linux 系统信息的 web 面板,和 Glances 一样,psDash 的系

阅读全文>> 2017-10-26 06:37:20      编辑     阅读量:358

关于日志打印的一些建议

日志的打印在软件开发过程中必不可少,一般分为两个大类: - 操作日志 - 系统日志    操

阅读全文>> 2017-10-23 08:36:44      编辑     阅读量:376

软件项目版本号的命名规则及格式

版本控制比较普遍的 3 种命名格式 :### 一、GNU 风格的版本号命名格式 :主版本号 .

阅读全文>> 2017-10-23 02:44:07      编辑     阅读量:341

VIM删除重复行

Vim对正则的支持很强大,很多高级的正则表达式在Vim中都是支持的。这里可以通过正则很easy的删除文本的重

阅读全文>> 2017-10-17 09:14:54      编辑     阅读量:328

使用python的MySQLdb操作MySQL

使用MySQLdb的简单方法如下:```conn=MySQLdb.connect(host='192

阅读全文>> 2017-09-25 03:09:30      编辑     阅读量:392

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