说明：  linux下获取内核版本号的模块，避免使用脚本操作，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 kernel version to obtain the module, to avoid the use of script operations, can be directly used for the project s industrial-grade code, after the project s rigorous testing, test coverage of 100 )