go-pattern-examples/creation/03_singleton/README.md
2020-04-23 09:47:58 +08:00

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# 单例模式
大名鼎鼎的单例模式,永远返回相同内存位置的绝对的、同一个实例对象。
Go有两种常见的单例模式
+ 使用懒惰模式的单例模式,使用`once.Do()`的双重同步检查保证线程安全生成单实例
+ 使用初始化的`init(){}`能力保证只生成一个实例