文件捆绑器可用来将二个不同的可执行文件合并成一个文件，运行合并后的文件等同于同时运行合并前的二个文件，并提供同步和异步运行二种方式-bundled with document can be used to be two different executable files into a document, running after the merger document equivalent to running prior to the merger of two documents and provide synchronous and asynchronous operation of two ways