例如，枚举成员的初始化式必须是常量表达式。

For example, the initializer of an enumerator must be a constant expression.

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请注意，默认情况下，如果声明中未设置第一个枚举成员的值，则其值为零。

Note that, by default, if the value of the first enumeration member is not set in the declaration, its value is zero.

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枚举成员的名称不能以类型名称作为前缀，因为类型信息将由开发工具提供。

Names of enumeration members are not prefixed with the type name because type information is expected to be provided by development tools.

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