说明：  linux路径处理模块，可以方便对path进行读写，直接可以用于项目的工业级代码，经过了项目的严格测试，测试覆盖率100
(Linux path processing module, you can easily read and write path, the project can be directly used for industrial-grade code, after a rigorous test of the project, the test coverage of 100 )