包括Socket读写多线程、多线程访问数据库、互斥量、临界区、事件、信号量等数据库访问,Socket read and write, including multi-threaded, multi-threaded access to the database, exclusive volume, critical, events, semaphores, such as database access

采用多线程，结合数据库管理功能，实现强力综合网页搜索，可以自定义添加网址-Multi-threading, with database management function, achieving a strong integrated Web search, you can add custom URLs