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法學在C#中獲取當前列舉型別中常量的值的陣列
要獲取當前列舉型別中常量的值的陣列，程式碼如下 -
示例
using System;
public class Demo {
enum Vehicle {Car, Bus, Bike, Airplane}
public static void Main() {
try {
Type type = typeof(int);
string[] str = type.GetEnumNames();
Console.WriteLine("GetEnumNames() to return the constant name = " + str);
Type type2 = type.GetEnumUnderlyingType();
Console.Write("Enum Underlying type = "+type2);
Array arrObj = type.GetEnumValues();
Console.Write("Values = {0}"+arrObj);
Console.WriteLine("
Listing constants ..");
for (int i = 0; i < str.Length; i++)
Console.Write("{0} ", str[i]);
}
catch (ArgumentException e) {
Console.WriteLine("Not an enum!");
Console.Write("{0}", e.GetType(), e.Message);
}
}
}輸出
這會產生以下輸出 -
Not an enum! System.ArgumentException
示例
讓我們看另一個示例 -
using System;
public class Demo {
enum Vehicle {Car, Bus, Bike, Airplane}
public static void Main() {
try {
Vehicle v = Vehicle.Bike;
Type type = v.GetType();
string[] str = type.GetEnumNames();
Console.WriteLine("GetEnumName() to return the constant name = " + str);
Type type2 = type.GetEnumUnderlyingType();
Console.Write("Enum Underlying type = "+type2);
Array arrObj = type.GetEnumValues();
Console.Write("Values = "+arrObj);
Console.WriteLine("
Listing constants ..");
for (int i = 0; i < str.Length; i++)
Console.Write("{0} ", str[i]);
}
catch (ArgumentException e) {
Console.WriteLine("Not an enum!");
Console.Write("{0}", e.GetType(), e.Message);
}
}
}輸出
這會產生以下輸出 -
GetEnumName() to return the constant name = System.String[] Enum Underlying type = System.Int32Values = Demo+Vehicle[] Listing constants .. Car Bus Bike Airplane
更新於：2019-12-10
76 次瀏覽
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