为了释放和重置非托管资源(例如与数据库、文件等的连接),并执行内存清理,我们使用 C# 中名为 dispose of () 的函数。它必须实现 IDisposable 接口,并且必须由用户显式调用,而不是由垃圾收集器调用。使用 dispose of () 方法时的性能成本为空,因为 dispose() 方法会立即清理内存,从而优化内存,因此使用此函数来清理非托管资源(例如文件和数据库连接)非常重要强烈推荐。
语法:
dispose();
dispose() 函数的工作原理如下:
让我们讨论一下 C# 对象处理的示例。
C# 程序通过实现 IDisposable 接口并显式调用 dispose() 函数来显示相应的消息来演示 dispose() 函数的用法:
代码:
using System; using System.IO; using System; //a class called demonstratingclass is defined and it implements the IDidposable interface public class demonstratingclass : IDisposable { //the dispose() method is defined to to perform the release of the required resources public void Dispose() { Console.WriteLine("The dispose() function has been called and the resources have been released!"); } } //another class called demofordispose is defined public class demofordispose { //main method is called public static void Main() { //an instance of the demonstratingclass is created var result = new demonstratingclass(); //the dispose() method is called on the instance of the demonstratingclass to release it from the memory result.Dispose(); } }
输出:
在上面的程序中,定义了一个名为演示类的类,它实现了 IDidposable 接口。然后在实现IDisposable接口的演示类中定义dispose()方法来执行所需资源的释放。然后定义另一个名为 demofordispose 的类,在其中调用 main 方法。在 main 方法中,创建了演示类的实例。然后在演示类的实例上调用 dispose of () 函数将其从内存中释放,并显示相应的消息。
C# 程序通过实现 IDisposable 接口并显式调用 dispose of () 函数来显示相应的消息来演示 dispose of () 函数的用法:
代码:
using System; //a class called demonstratingclass is defined and it implements the IDidposable interface public class demonstratingclass : IDisposable { //the dispose() method is defined to to perform the release of the required resources public void Dispose() { Console.WriteLine( "The resources have been released because the dispose function is called upon them"); } } //another class called demofordispose is defined public class demofordispose { //main method is called public static void Main() { //an instance of the demonstratingclass is created var check = new demonstratingclass(); //the dispose() method is called on the instance of the demonstratingclass to release it from the memory check.Dispose(); } }
输出:
在上面的程序中,定义了一个名为演示类的类,它实现了 IDidposable 接口。然后在实现IDisposable接口的演示类中定义dispose()方法来执行所需资源的释放。然后定义另一个名为 demofordispose 的类,在其中调用 main 方法。在 main 方法中,创建了演示类的实例。然后,在演示类的实例上调用 dispose of () 函数,将其从内存中释放,并显示相应的消息。
C# 程序通过实现 IDisposable 接口并显式调用 dispose() 函数来显示相应的消息来演示 dispose() 函数的用法:
代码:
using System; //a class called demonstratingclass is defined and it implements the IDidposable interface public class demonstratingclass : IDisposable { //the dispose() method is defined to to perform the release of the required resources public void Dispose() { Console.WriteLine("The dispose() function is releasing the specified resources freeing them from the memory."); } } //another class called demofordispose is defined public class demofordispose { //main method is called public static void Main() { //an instance of the demonstratingclass is created var check1 = new demonstratingclass(); //the dispose() method is called on the instance of the demonstratingclass to release it from the memory check1.Dispose(); } }
输出:
在上面的程序中,定义了一个名为演示类的类,它实现了 IDidposable 接口。然后在实现IDisposable接口的演示类中定义dispose()方法来执行所需资源的释放。然后定义另一个名为 demofordispose 的类,在其中调用 main 方法。在 main 方法中,创建了演示类的实例。然后在演示类的实例上调用 dispose() 函数,将其从内存中释放,并显示相应的消息。
在本文中,我们通过编程示例及其输出,通过 C# 中 dispose of () 函数的定义、语法和工作原理了解了 C# 中 dispose of () 函数的概念。
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