我可以在VB.NET中给一个枚举一个属性（像我在Java中可以做到的）？ [英] Can I give an enum an attribute in VB.NET (like I can do in Java)?

问题描述

在Java中，我可以这样做：

In Java I can do something like this:

enum Country {
    IRELAND("Europe"),
    FRANCE("Europe"),
    NIGERIA("Africa"),
    THAILAND("Asia");

    private String continent;

    Country(String continent) {
        this.continent = continent;
    }

    public String getContinent() {
        return continent;
    }
}

这允许我做一些类似的事情：

which allows me to do something like:

Country country1 = getCountryFromSomewhere();
Country country2 = Country.FRANCE;
System.out.print("country1 is in " + country1.getContinent());
System.out.print("country2 is in " + country2.getContinent());

可以在VB.NET中做同样的事情，即将大陆属性添加到国家枚举？

Is it possible to do the same thing in VB.NET i.e. add the continent attribute to the country enum?

推荐答案

我使用这个解决方案：

声明枚举：

Private Enum Country
    IRELAND
    FRANCE
    THAILAND
End Enum

声明和初始化字典（也称为地图）：

Declare and initialise Dictionary (aka a map):

Dim countryContinentMap As IDictionary(Of Country, String) = New Dictionary(Of Country, String)
countryContinentMap.add(Country.IRELAND, "Europe")
countryContinentMap.add(Country.FRANCE, "Europe")
countryContinentMap.add(Country.THAILAND, "Asia")

这让我得到这样的大陆：

which allows me to get the continent like this:

Dim franceContinent As String = countryContinentMap(Country.FRANCE)

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