makefile关系到了整个工程的编译规则。一个工程中的源文件不计数，其按类型、功能、模块分别放在若干个目录中，makefile定义了一系列的规则来指定，哪些文件需要先编译，哪些文件需要后编译，哪些文件需要重新编译，甚至于进行更复杂的功能操作，因为makefile就像一个Shell脚本一样，其中也可以执行操作系统的命令。 makefile带来的好处就是——“自动化编译”，一旦写好，只需要一个make命令，整个工程完全自动编译，极大的提高了软件开发的效率。make是一个命令工具，是一个解释makefile中指令的命令工具，一般来说，大多数的IDE都有这个命令，比如：Delphi的make，Visual C++的nmake，Linux下GNU的make。可见，makefile都成为了一种在工程方面的编译方法。-related to the makefile build rules for the whole project. A project source file does not count, its by type, function, respectively, on the number of modules directory, makefile defines a set of rules to specify which files need to be compiled, after which files need to compile, which files need to re- compilation, and even more complex functional operation, because the same makefile as a Shell scr ipt, which also can perform operating system commands. the benefits of makefile is- "Automatic compiler", once written, just need a make command to automatically compile the whole project completely, greatly improving the efficiency of software development. make is a command tool is a makefile in order to explain the command tool, in general, most of the IDE has this command, for example: Delphi to make, Visual C++ for nmake, Linux under the GNU s make. Visible, makefile become a compilation methods in engineering.