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🎉 单例模式

This commit is contained in:
bunny 2025-06-25 22:59:31 +08:00
parent 6fc5ca253e
commit 25a7536882
4 changed files with 42 additions and 0 deletions
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9
CSharp/SQLTutorial/SQLTutorial.sln
View File

@ -25,6 +25,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Cors-1-Start", "Cors-1-Star
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EFCore-3-AccessToken", "EFCore-3-AccessToken\EFCore-3-AccessToken.csproj", "{B7A5F125-10FD-401B-8EC9-DAD2A07CD3EF}"
EndProject
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Desginer", "Desginer", "{748C8C45-E179-4401-99FD-E8A0C24F00C2}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SingletonPattern", "SingletonPattern\SingletonPattern.csproj", "{F9835AE0-AC78-4CDE-A6EB-2914F4B954D6}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@ -63,6 +67,10 @@ Global
{B7A5F125-10FD-401B-8EC9-DAD2A07CD3EF}.Debug|Any CPU.Build.0 = Debug|Any CPU
{B7A5F125-10FD-401B-8EC9-DAD2A07CD3EF}.Release|Any CPU.ActiveCfg = Release|Any CPU
{B7A5F125-10FD-401B-8EC9-DAD2A07CD3EF}.Release|Any CPU.Build.0 = Release|Any CPU
{F9835AE0-AC78-4CDE-A6EB-2914F4B954D6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{F9835AE0-AC78-4CDE-A6EB-2914F4B954D6}.Debug|Any CPU.Build.0 = Debug|Any CPU
{F9835AE0-AC78-4CDE-A6EB-2914F4B954D6}.Release|Any CPU.ActiveCfg = Release|Any CPU
{F9835AE0-AC78-4CDE-A6EB-2914F4B954D6}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
@ -76,5 +84,6 @@ Global
{FFC9C69A-3A61-4028-82BE-E02956A287C2} = {12D8E17C-7030-4C9A-BB48-D473ECFCB9D0}
{347DC482-5CBA-4C10-AD6E-6CE5B2B5C363} = {95B72C47-8BC3-477A-8666-4F0BCBA96550}
{B7A5F125-10FD-401B-8EC9-DAD2A07CD3EF} = {12D8E17C-7030-4C9A-BB48-D473ECFCB9D0}
{F9835AE0-AC78-4CDE-A6EB-2914F4B954D6} = {748C8C45-E179-4401-99FD-E8A0C24F00C2}
EndGlobalSection
EndGlobal

6
CSharp/SQLTutorial/SingletonPattern/Program.cs Normal file
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@ -0,0 +1,6 @@
// See https://aka.ms/new-console-template for more information
using SingletonPattern;
var singleton = Singleton.Instance;
singleton.SomeMethod();

17
CSharp/SQLTutorial/SingletonPattern/Singleton.cs Normal file
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@ -0,0 +1,17 @@
namespace SingletonPattern;
public class Singleton
{
private static readonly Lazy<Singleton> LazyInstance = new(() => new Singleton());
private Singleton()
{
}
public static Singleton Instance => LazyInstance.Value;
public void SomeMethod()
{
Console.WriteLine("Singleton method called");
}
}

10
CSharp/SQLTutorial/SingletonPattern/SingletonPattern.csproj Normal file
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@ -0,0 +1,10 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net9.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
</Project>