说明：  linux下磁盘挂载判断模块，避免使用脚本操作磁盘，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 disk loading judgment module, to avoid using the script to operate the disk, can be directly used for the project s industrial-grade code, after the project s rigorous testing, test coverage of 100 )