如何将此代码从windows visual studio 2015转换为windows visual studio 2012 [英] How can I convert this code from windows visual studio 2015 to windows visual studio 2012

问题描述

public string MO_Number { get  ;set ;} = "" ;

我的尝试：

What I have tried:

Private string r = String.Empty;

public string MO_Number { get  ;set ;}
  public string r 
    { 
        get 
        { 
            if (String.IsNullOrEmpty(this.r)) 
                return this.MO_Number ;   

            return this.r; 
        } 

        set { this.r = value; } 
    }

谢谢你的帮助:)。

Thank you for you help :) .

推荐答案

private string _mo_number = ""; // should use string.Empty instead of "" though

public string MO_Number
{
    get
    {
        return _mo_number;
    }
    set
    {
        _mo_number = value;
    }
}

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