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修改单词拼写错误

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docs/java/jvm/类加载器.md
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@ -65,7 +65,7 @@ The GrandParent of ClassLodarDemo's ClassLoader is null
`AppClassLoader`的父类加载器为`ExtClassLoader`
`ExtClassLoader`的父类加载器为null，**null并不代表`ExtClassLoader`没有父类加载器，而是 `Bootstrap ClassLoader`** 。
其实这个双亲翻译的容易让别人误解，我们一般理解的双亲都是父母，这里的双亲更多地表达的是“父母这一辈”的人而已，并不是说真的有一个 Mather ClassLoader 和一个 Father ClassLoader 。另外，类加载器之间的“父子”关系也不是通过继承来体现的，是由“优先级”来决定。官方API文档对这部分的描述如下:
其实这个双亲翻译的容易让别人误解，我们一般理解的双亲都是父母，这里的双亲更多地表达的是“父母这一辈”的人而已，并不是说真的有一个 Mother ClassLoader 和一个 Father ClassLoader 。另外，类加载器之间的“父子”关系也不是通过继承来体现的，是由“优先级”来决定。官方API文档对这部分的描述如下:
>The Java platform uses a delegation model for loading classes. **The basic idea is that every class loader has a "parent" class loader.** When loading a class, a class loader first "delegates" the search for the class to its parent class loader before attempting to find the class itself.