chj3737

学习之道

人脑特点

思维模式

两种工作模式类似近光灯与远光灯

专注模式

chj3737

class Observable {
  void notifyObservers(Object context); 
  void addObserver(Observer observer);
  void removeObserver(Observer observer);
  // ... count, 
}

interface Observer {
  void update(Observable obj, Object context);
}

chj3737

class Car {
  Engine engine;
  Brake brake;
  Window window;
  
  start() {
    engine.start();
  }
  
  break() {

chj3737

// 应该可以为接口或是抽象类
interface Component {
  Object operate();
}

class ComponentImpl {
  Object operate() { }
}

// 实现接口或是抽象类

chj3737

interface TargetInterface {
  TargetObject operate();
}

class LegacyObject {
  Object method();
}

class AdapterForLegacy implements TargetInterface {
  LegacyObject legacy;

chj3737

Disable Device Enrollment Program (DEP) notification on macOS Monterey.md

NB! command-R is replaced with holding the power button on M1 macs.

With full reinstall (recommended)

   a. Boot into recovery using command-R during reboot, wipe the harddrive using Disk Utility, and select reinstall macOS

   b. Initial installation will run for approximately 1 hour, and reboot once