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📜  C＃final

📅  最后修改于: 2020-10-31 04:05:14             🧑  作者: Mango

C＃ final

C＃finally块用于执行重要代码，无论是否处理异常，该代码都将执行。它必须在catch或try块之前。

C＃final示例，如果处理了异常

using System;
public class ExExample
{
    public static void Main(string[] args)
    {
        try
        {
            int a = 10;
            int b = 0;
            int x = a / b;
        }
        catch (Exception e) { Console.WriteLine(e); }
        finally { Console.WriteLine("Finally block is executed"); }
        Console.WriteLine("Rest of the code");
    }
}

输出：

System.DivideByZeroException: Attempted to divide by zero.
Finally block is executed
Rest of the code

如果没有处理异常，C＃ final示例

using System;
public class ExExample
{
    public static void Main(string[] args)
    {
        try
        {
            int a = 10;
            int b = 0;
            int x = a / b;
        }
        catch (NullReferenceException e) { Console.WriteLine(e); }
        finally { Console.WriteLine("Finally block is executed"); }
        Console.WriteLine("Rest of the code");
    }
}

输出：

Unhandled Exception: System.DivideBy