Spider程序：shell编程，实现文件内容的逐行读取，并抓取种子节点开始的网页，4层深度-Spider programs: shell programming, the contents of the file line by line read, and crawl seed nodes in the beginning pages, 4-layer depth

VC编程实现逐行读取文件经典代码 VC编程实现逐行读取文件经典代码-VC program to achieve the classic code line by line to read the file