已经知道文本中第几行，想用streamwriter把这行删除掉 不知道如何实现

[zhizlm]

已经知道文本中第几行，想用streamwriter把这行删除掉 不知道如何实现

可以说是把这行删除掉 不留空格 不留空行 完全删除掉。请教

[diffmaker]

using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace CA1
{
    class Program
    {
        static void Main(string[] args)
        {
            string file = "sample.txt";//文件名
            string filecontent = string.Empty;
            int line = 2;//不需要的行
            int curline = 1;
            using (StreamReader sr = new StreamReader(file, Encoding.GetEncoding("GB2312")))
            {
                while (sr.Peek() != -1)
                {
                    string tmp = sr.ReadLine();
                    if (line != curline)
                    {
                        if (filecontent != string.Empty) filecontent += "\r\n";
                        filecontent += tmp;
                    }
                    curline++;
                }
            }
            //写回
            using (StreamWriter sw = new StreamWriter(file, false, Encoding.GetEncoding("GB2312")))
            {
                sw.Write(filecontent);
            }
            Console.ReadLine();
        }
    }
}

[kensouterry]

等会儿回来琢磨下，先把回复分拿到手，呵呵呵

[zyk113229917]

StreamReader sd = File.OpenText("1.txt");
string savestr= sd.ReadToEnd();
sd.Close();
int foundS1 = name.IndexOf(" ");
int foundS2 = name.IndexOf(" ", foundS1 + 1);

if (foundS1 != foundS2 && foundS1 >= 0)
{

name = name.Remove(foundS1 + 1, foundS2 - foundS1);

}

StreamWriter sw = File.CreateText("1.txt");
sw.WriteLine(savestr);
sw.Close();

这是删除空格操作 自己写的 很容易看懂

[duping9626]

ReadLine()一行一行读，然后跟过那一行，再写回去

[duping9626]

跳过

[zhizlm]

[Quote=引用 1 楼 duping9626 的回复:]
ReadLine()一行一行读，然后跟过那一行，再写回去
[/Quote]


思路我也有。代码如何实现呢