c#如何理解.txt文件作为main函数的输出

Question

主代码如下:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
namespace text_test
{
class Program
{
    static void Main(string[] args)
     {
       txt_program tt = new txt_program();
        string[] output_txt = tt.txt;
    }
}
}

出现错误:

声明无法将方法组'txt'转换为非委托类型'string[]'。

我应该写什么来代替string[] ?被调用的代码看起来像这样:

(与上述相同的系统调用)。

namespace text_test
{
class txt_program
{
    public void txt(string[] args)
    {
        // Take 5 string inputs -> Store them in an array
        // -> Write the array to a text file
        // Define our one ad only variable
        string[] names = new string[5]; // Array to hold the names
        string[] names1 = new string[] { "max", "lars", "john", "iver", "erik" };
        for (int i = 0; i < 5; i++)
        {
            names[i] = names1[i];
        }
        // Write this array to a text file
        StreamWriter SW = new StreamWriter(@"txt.txt");
        for (int i = 0; i < 5; i++)
        {
            SW.WriteLine(names[i]);
        }
        SW.Close();
    }
}
}

Answer 1

如果你只想写一个数组到文件

 static void Main(string[] args) {
   string[] namess = new string[] { 
     "max", "lars", "john", "iver", "erik" };
   File.WriteAllLines(@"txt.txt", names);
 }

如果你坚持用流分隔类:

class txt_program {
  // () You don't use "args" in the method
  public void txt(){ 
    string[] names = new string[] { "max", "lars", "john", "iver", "erik" };
    // wrap IDisposable (StreamWriter) into using 
    using (StreamWriter SW = new StreamWriter(@"txt.txt")) {
      // do not use magic numbers - 5. 
      // You want write all items, don't you? Then write them  
      foreach (var name in names)
        SW.WriteLine(name);
    }
  }
}
...
static void Main(string[] args){
  // create an instance and call the method
  new txt_program().txt();
}

Answer 2

public void txt(string[] args){}

删除参数"string[] args"，不需要。

像这样调用方法tt.txt ();

void方法不返回任何值

所以不要尝试获取字符串数组