C# 7 ref local and ref return | C# Online Compiler

C# 7 ref local and ref return by Michael Tsai

using System;
					
public class Program
{
    static int _number = 10;

    public static void Main()
    {
        ref int n = ref RefReturn(); // ref 區域變數
        n = 20;

        Console.WriteLine(_number); // 輸出 "20"
    }

    static ref int RefReturn() // ref 回傳值
    {
        return ref _number;
    }
}

​x
 
using System;
                    
public class Program
{
    static int _number = 10;
​
    public static void Main()
    {
        ref int n = ref RefReturn(); // ref 區域變數
        n = 20;
​
        Console.WriteLine(_number); // 輸出 "20"
    }
​
    static ref int RefReturn() // ref 回傳值
    {
        return ref _number;
    }
}

The Char value r converts to r.
The String value s converts to s.
String must be exactly one character long.
The Byte value 83 converts to S.
The Int32 value 77 converts to M.
The Int32 value 109324 is outside the range of the Char data type.
The Int32 value 335812911 is outside the range of the Char data type.
Conversion of the DateTime value 3/10/2009 12:00:00 AM to a Char is not supported.
The UInt32 value 1934 converts to ގ.
The SByte value -17 is outside the range of the Char data type.
Conversion of the Double value 169.34 to a Char is not supported.
Conversion of the Decimal value 175.6 to a Char is not supported.
The null value converts to .

Cached Result
Last Run:	5:45:42 pm
Compile:	0.241s
Execute:	0.04s
Memory:	441.16kb
CPU:	0.141s

View IL Code