Unity 保留了一些项目文件夹名称来指示内容具有特殊用途。其中一些文件夹会影响脚本编译的顺序。这些文件夹名称为：
请参阅特殊文件夹名称了解这些文件夹的用途。
脚本编译过程有四个独立的阶段。编译脚本的阶段由其父文件夹确定。
在脚本必须引用其他脚本中定义的类的情况下，这很重要。基本规则是无法引用在当前阶段之后的阶段编译的任何内容。在当前阶段或早期阶段编译的所有内容则是完全可用的。
当用一种语言编写的脚本必须引用另一种语言定义的类（例如，UnityScript 文件声明 C# 脚本中定义的类的变量）时，会出现另一种情况。这里的规则是被引用的类必须在早期阶段完成编译。
编译阶段如下：
体现此顺序非常重要的一个常见示例是 UnityScript 文件需要引用 C# 文件中定义的类时。要实现此引用，必须将 C# 文件放在 Plugins 文件夹中，并将 UnityScript 文件放在非特殊文件夹中。如果不这样做，则会抛出错误，指出无法找到 C# 类。
注意：Standard Assets 仅在 Assets 根文件夹中有效。
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