c# - 枚举应该以 0 还是 1 开头？

Question

假设我定义了以下枚举:

public enum Status : byte
{
    Inactive = 1,
    Active = 2,
}

使用枚举的最佳做法是什么？它应该像上面的示例那样以 1 开头，还是像这样以 0 开头(没有显式值):

public enum Status : byte
{
    Inactive,
    Active
}

Answer 1

Framework Design Guidelines :

✔️ DO provide a value of zero on simple enums.

Consider calling the value something like "None." If such a value is not appropriate for this particular enum, the most common default value for the enum should be assigned the underlying value of zero.

Framework Design Guidelines / Designing Flag Enums :

❌ AVOID using flag enum values of zero unless the value represents "all flags are cleared" and is named appropriately, as prescribed by the next guideline.

✔️ DO name the zero value of flag enums None. For a flag enum, the value must always mean "all flags are cleared."