c# - C#：从变量中获取变量值

Question

我一直在尝试访问内部本身就是一个变量的变量值，我什至不确定它是否可能。

string var1 = "var2";
string var2 = "testvar";

那么，在这里，是否有可能使用 var1 变量访问值“testvar”？

谢谢！

为了更好地解释场景，这里是实际代码 - 从 excel 列中读取变量，并且这些变量的值存在于代码中

//Excel codeFieldsListLocal column in CodeFields.xlsx
//row 1: var1
//row 2: var2
//row 3: var3
//row 4: var4


using System;
using System.Linq;
using System.Text;
using System.IO;
using System.Collections.Generic;
using HL7Spy.Core;
using HL7Spy.Core.Hl7;
using Excel = Microsoft.Office.Interop.Excel;

public partial class DynamicClassTest : HL7Spy.Core.BaseCustomFunction
{
    string _outFileName = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop),"out.txt"); 
    string _inFileName = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),"CodeFields.xlsx"); 
    Excel.Application xlApp = new Excel.Application();

    string var1 = "John";
    string var2 = "Tom";
    string var3 = "Bruce";
    string var4 = "Hugh";
    string var5 = "Peter";
    string var6 = "Steve";
    string var7 = "Bob";


    StreamWriter _file;
    /Called for a set of data
    public override void Run()
    {
        List<string> codeFieldsListLocal = new List<string>();
        // create the file to be written out
        _file = new StreamWriter(_outFileName, false);
        codeFieldsListLocal = getCodeFieldsNamesFromExcel();

        for(int i = 0; i < codeFieldsListLocal.Count; i++) {
            _file.WriteLine(codeFieldsListLocal[i]); /* --> Here I wanted to display the values instead of the variable names, is it possbile? Like John, Tom and others; and not var1, var2...*/

        }
    }
    //Called at time of code closure
    public override void OnFinish() {
        _file.WriteLine("OnFinish");
        _file.Close();
        // launch notepad to display the file.
        System.Diagnostics.Process.Start("Notepad",_outFileName);
    }
    //Creating a list of variables from the excel column
    public List<string> getCodeFieldsNamesFromExcel () {
        List<string> codeFieldsListLocal = new List<string>();
        Excel.Workbook workbook = xlApp.Workbooks.Open(_inFileName,
                    Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                    Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                    Type.Missing, Type.Missing, Type.Missing, Type.Missing,
                    Type.Missing, Type.Missing);

        Excel.Worksheet sheet = (Excel.Worksheet)workbook.Sheets.get_Item(1);
        Excel.Range range = (Excel.Range)sheet.UsedRange.Columns[3];
        object[,] currentColumn = (object[,])range.Cells.Value2;
        for (int i = 2; i < currentColumn.Length; i++) {
            codeFieldsListLocal.Add(currentColumn[i,1].ToString());
            _file.WriteLine(currentColumn[i,1]);
        }
        return codeFieldsListLocal;
    }
}

标签： c#