在书上所看到的源码，阅读器，读取*.txt，并能使用PageUp、PageDown、Home、End、Esc、F1和上下左右键以阅读完整文章。-In the book on the source to see, read, and read*. txt, and can use the PageUp, PageDown, Home, End, Esc, F1, and up and down keys around to read the entire article.