使用通配符编写的makefile，将源码放在根目录下，使用此makefile可自动生成与目录名相同的可执行文件。同时附多级目录的makefile的demo，可将不同模块放到不同目录中，便于管理。附多个文档，为本人搜集编译后，供初学者使用入门。-Prepared by the use of wildcard makefile, the source code on the root directory, use this makefile to automatically generate a directory name with the same executable file. At the same time, attached multi-level directory of the makefile of the demo, can be different on different modules directory, easy to manage. Attached to multiple documents for the collection I compiled for the use of entry for beginners.