C#程序中的析构函数是什么？
析构函数是类的特殊成员函数，只要其类的对象超出范围，就会执行该析构函数。
它的名称与带有代字号（〜）的类的名称完全相同，例如，我们的类名为Demo。
public Demo() { // constructor
Console.WriteLine("Object is being created");
}
~Demo() { //destructor
Console.WriteLine("Object is being deleted");
}让我们看一个示例，以学习如何在C#中使用Destructor。
示例
using System;
namespace LineApplication {
class Line {
private double length; // Length of a line
public Line() { // constructor
Console.WriteLine("Object is being created");
}
~Line() { //destructor
Console.WriteLine("Object is being deleted");
}
public void setLength( double len ) {
length = len;
}
public double getLength() {
return length;
}
static void Main(string[] args) {
Line line = new Line();
//设置线长
line.setLength(6.0);
Console.WriteLine("Length of line : {0}", line.getLength());
}
}
}输出结果
Object is being created Length of line : 6 Object is being deleted