用 C# 获取当前类型的特定字段
要使用 C# 获取当前类型的一个特定字段,代码如下所示 −
示例
using System;
using System.Reflection;
public class Demo {
public static void Main() {
Type type = typeof(Subject);
try {
FieldInfo fieldInfo = type.GetField("SubName");
Console.WriteLine("FieldInfo = {0}", fieldInfo);
}
catch (ArgumentNullException e) {
Console.Write("{0}", e.GetType(), e.Message);
}
}
}
public class Subject {
public string SubName = "Science";
}输出
将产生以下输出 −
FieldInfo = System.String SubName
示例
我们看另一个示例 −
using System;
using System.Reflection;
public class Demo {
public static void Main() {
Type type = typeof(Subject);
try {
FieldInfo fieldInfo = type.GetField(null);
Console.WriteLine("FieldInfo = {0}", fieldInfo);
}
catch (ArgumentNullException e) {
Console.Write("{0}", e.GetType(), e.Message);
}
}
}
public class Subject {
public string SubName = "Science";
}输出
将产生以下输出 −
System.ArgumentNullException
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