Design mode - singleton mode

brief introduction The class of a singleton object can only allow one instance to exist. Many times, the whole system only needs to have a global object, which is conducive to coordinating the overall behavior of the system. For example, in a server program, the configuration information of the server is stored in a file. These configurat ...

Posted by feddie1984 on Thu, 02 Sep 2021 14:16:36 -0700