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Using nested expressions when searching

Nested expressions allow you to create complex searches for information. For example, "html AND ((smtp OR pop3) NEAR mail)" finds topics containing the word "html" along with the words "smtp" and "mail" close together, or containing "html" along with the words "pop3" and "mail" close together.

The basic rules for searching help topics using nested expressions are as follows:


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php 手册 | 脚本学堂 | 脚本编程 | 网站编程 | 系统管理 | 服务器配置 | 数据库管理 | Php教程 | python教程 | 正则表达式 | 批处理脚本 | Centos教程 | Linux基础教程