C# 7: Ref Local with Instance Field | C# Online Compiler

C# 7: Ref Local with Instance Field by Michael Tsai

using System;

public static class Program
{
	public static void Main()
	{
		var obj = new Foo();
		ref int alias = ref obj.Number;
		
		alias = 10;
		Console.WriteLine(obj.Number); //  輸出 "10"
		
		obj = new Foo();
		Console.WriteLine(alias); // 輸出 "0" 還是 "10"？
	}
}

public class Foo
{
	public int Number = 0;
}

​x
 
using System;
​
public static class Program
{
    public static void Main()
    {
        var obj = new Foo();
        ref int alias = ref obj.Number;
        
        alias = 10;
        Console.WriteLine(obj.Number); //  輸出 "10"
        
        obj = new Foo();
        Console.WriteLine(alias); // 輸出 "0" 還是 "10"？
    }
}
​
public class Foo
{
    public int Number = 0;
}

Compilation error (line 1, col 1): A namespace cannot directly contain members such as fields or methods
Compilation error (line 36, col 1): Expected class, delegate, enum, interface, or struct
Compilation error (line 38, col 92): Expected class, delegate, enum, interface, or struct

Last Run:	2:11:19 pm
Compile:	0s
Execute:	0.032s
Memory:	0b
CPU:	0s

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