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Template method mode: encapsulate algorithm structure, define algorithm skeleton, and support algorithm sub-step changes.The function of the intermediary mode is to remove the coupling relationship between objects. After adding an intermediary object, all related objects communicate through the intermediary object instead of referencing each other. Therefore, when an object sends a change, only the intermediary object needs to be notified. Intermediaries loosely couple objects and can independently change their interaction.Why can I attend 42 meetings this year, either making speeches or playing various conference roles and walking on the way to prepare speeches?Decoct with water, boil for another hour, turn off the fire, and filter to obtain the first dye solution.沙加路就此点头要走。Denial of service attack: An attacker intentionally causes a computer or network to fail to function properly by some means, thus failing to provide the required services to legitimate users or degrading the quality of service.: This attribute needs to configure the value of taskAffinity in the AndroidManifest.xml file of the target activity to be started "must be different from the package name of the startActivity sender activity, and taskAffinity can be omitted if jumping to another App", which will press the activity into the taskAffinity where the newly marked Affinity exists.