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Legal Studies什麼是 C# 程式中的解構函式？
解構函式是的專屬成員函式，當它的類的物件超出作用域時，它會執行。
它的名稱與類的名稱完全相同，並帶有字首波浪號（~），例如，我們的類名稱是 Demo。
public Demo() { // constructor
Console.WriteLine("Object is being created");
}
~Demo() { //destructor
Console.WriteLine("Object is being deleted");
}讓我們看一個示例，瞭解如何在 C# 中進行解構函式。
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();
// set line length
line.setLength(6.0);
Console.WriteLine("Length of line : {0}", line.getLength());
}
}
}輸出
Object is being created Length of line : 6 Object is being deleted
更新時間： 20-Jun-2020
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