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在C#中,有多種方法可以用來(lái)搜索元數(shù)據(jù)
Type.GetType()
方法獲取一個(gè)類型的元數(shù)據(jù),然后使用Type
類的方法(如GetMethods()
、GetProperties()
等)來(lái)獲取該類型的成員信息。using System;
using System.Reflection;
class Program
{
static void Main()
{
Type type = typeof(MyClass);
MethodInfo[] methods = type.GetMethods();
PropertyInfo[] properties = type.GetProperties();
Console.WriteLine("Methods:");
foreach (MethodInfo method in methods)
{
Console.WriteLine(method.Name);
}
Console.WriteLine("\nProperties:");
foreach (PropertyInfo property in properties)
{
Console.WriteLine(property.Name);
}
}
}
class MyClass
{
public int MyProperty { get; set; }
public void MyMethod()
{
}
}
using System;
using System.Linq;
using System.Reflection;
class Program
{
static void Main()
{
Assembly assembly = Assembly.Load("MyAssembly");
var typesWithAttribute = from type in assembly.GetTypes()
let attributes = type.GetCustomAttributes(typeof(MyAttribute), false)
where attributes.Length > 0
select type;
foreach (var type in typesWithAttribute)
{
Console.WriteLine(type.Name);
}
}
}
[AttributeUsage(AttributeTargets.Class)]
class MyAttribute : Attribute
{
}
[My]
class MyClass
{
}
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using System;
using System.Linq;
class Program
{
static void Main()
{
string code = @"
using System;
class MyClass
{
public int MyProperty { get; set; }
public void MyMethod()
{
}
}";
SyntaxTree tree = CSharpSyntaxTree.ParseText(code);
CompilationUnitSyntax root = tree.GetCompilationUnitRoot();
var classDeclaration = root.DescendantNodes().OfType<ClassDeclarationSyntax>().First();
var methodDeclarations = classDeclaration.DescendantNodes().OfType<MethodDeclarationSyntax>();
var propertyDeclarations = classDeclaration.DescendantNodes().OfType<PropertyDeclarationSyntax>();
Console.WriteLine("Methods:");
foreach (var method in methodDeclarations)
{
Console.WriteLine(method.Identifier.ValueText);
}
Console.WriteLine("\nProperties:");
foreach (var property in propertyDeclarations)
{
Console.WriteLine(property.Identifier.ValueText);
}
}
}
這些方法可以幫助你在C#中有效地搜索元數(shù)據(jù)。根據(jù)你的需求和場(chǎng)景,你可以選擇最適合你的方法。
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