In most cases, it’s as simple as making sure that types, interfaces, classes, methods and functions that should not be used outside of the module have internal or private access scope. The compiler (or interpreter) will make sure that users won’t break encapsulation. Alternatively, for small and medium modules, you can prepare a facade object that will be used as an entrypoint to the module.
（三）明知住宿人员利用旅馆实施犯罪活动，不向公安机关报告的。。业内人士推荐体育直播作为进阶阅读
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