C# 用C语言中相同文本文件的另一行替换一行#
我想根据一些数据用文件的现有行替换文本行。我已经开发了一些代码块，但它不起作用。 我的文本文件如下所示：-C# 用C语言中相同文本文件的另一行替换一行#,c#,C#,我想根据一些数据用文件的现有行替换文本行。我已经开发了一些代码块，但它不起作用。 我的文本文件如下所示：- g_start-fd,g_start-cnst,g_start-eq,mv-mv_size,mv-mv_alloy,mv-mv_argmt,mv-mv_ps,xfrmr-kva,g_end-line_t,g_end-str_num,g_end-cmt,g_end-str_coord-Latitude,g_end-str_coord-Longitude 28F1Y,oh,mv oh,120,
g_start-fd,g_start-cnst,g_start-eq,mv-mv_size,mv-mv_alloy,mv-mv_argmt,mv-mv_ps,xfrmr-kva,g_end-line_t,g_end-str_num,g_end-cmt,g_end-str_coord-Latitude,g_end-str_coord-Longitude
28F1Y,oh,mv oh,120,al,oh_3,P45R24,,i,P45R25,,9.53725695,-0.86668464
28F1Y,oh,mv oh,120,al,oh_3,P45R25,,i,P45R42,,9.5468355,-0.85948875
28F1Y,oh,mv oh,120,al,oh_3,P45R42,,i,P45R49,,9.55073989,-0.85625858
28F1Y,oh,mv oh,120,al,oh_3,P45R49,,a,P45R25,,,
28F1Y,oh,mv oh,120,al,oh_3,P45R54,,i,P45R55,,9.5544981,-0.85359626
28F1Y,oh,mv xfrmr,120,al,oh_3,P45R55,5000,e,P45R56,Substation,9.5549907,-0.85303108
28F1Y,ug,mv,185,al,xlpe_3,P45R56,,e,P45R55,,,
28F1Y,ug,mv,185,al,xlpe_3,P45R57,,s,P45R58,Take off from ring main,9.55387622,-0.8538622
28F1Y,oh,mv oh,120,al,oh_3,P45R58,,a,P45R73,,9.54513187,-0.86060037
28F1Y,oh,mv oh,120,al,oh_3,P45R73,,a,P45R77,,9.5417936,-0.86098952
28F1Y,oh,mv oh,120,al,oh_3,P45R77,,a,P45R80,,9.54144045,-0.85857346
28F1Y,oh,mv oh,120,al,oh_3,P45R80,,a,P45R86,,9.53675765,-0.85935176
28F1Y,oh,mv,120,al,oh_3,P45R86,,e,P45R80,,,
string fileName1 = "D:\\WriteTextWork\\Line1.txt"; ;
OpenFileDialog pfdg = new OpenFileDialog();
if (pfdg.ShowDialog() == DialogResult.OK)
{
fileName1 = pfdg.FileName;
}
if (File.Exists(fileName1))
{
StreamReader SR = new StreamReader(fileName1);
string Data = null;
int count = 0;
while ((Data = SR.ReadLine()) != null)
{
count++;
if (count > 1)
{
string CopyText = "";
String[] SplitData = Data.Split(',');
if (SplitData[9] != null && SplitData[11] != null)
{
CopyText = Data;
string data1 = SR.ReadLine();
//MessageBox.Show(CopyText);
}
using (StreamReader SR1 = new StreamReader(fileName1))
{
//var SW = new StreamWriter(resultString1);
string line;
while ((line = SR1.ReadLine()) != null)
{
//String TrimData2 = line.Trim();
String[] SplitText = line.Split(',');
if (SplitText[9] == SplitData[9] && SplitText[11] == null)
{
using (StreamWriter SW = new StreamWriter(resultString1))
{
SW.WriteLine(CopyText);
MessageBox.Show(CopyText);
SW.Close();
}
}
}
SR1.Close();
}
}
}
}
要强制代码工作，只需替换：
if (SplitText[9] == SplitData[9] && SplitText[11] == null)
private void btn_proceed_Click(object sender, EventArgs e)
{
// This dictionary contains indices of rows we need to replace.
Dictionary<int, int> replaceable = new Dictionary<int, int>();
replaceable.Add(4, 1);
replaceable.Add(7, 5);
replaceable.Add(13, 11);
string input = String.Empty;
OpenFileDialog pfdg = new OpenFileDialog();
if (pfdg.ShowDialog() == DialogResult.OK)
{
input = pfdg.FileName;
}
// I placed the result into the another file called result.txt. You can use output path as same as input to overwrite the file.
ReplaceLines(replaceable, input, @"C:\Users\Wallstrider\Documents\Visual Studio 2010\Projects\result.txt", 9);
}
/// <summary>
/// Replaces lines of the file depends on 9th item is exist.
/// </summary>
/// <param name="replaceable">Rows incides to replace.</param>
/// <param name="input_path">Path to the input file.</param>
/// <param name="output_path">Path to the output file.</param>
/// <param name="has_value_index">Index of a split data value in the row.</param>
private void ReplaceLines(Dictionary<int, int> replaceable, string input_path, string output_path, int has_value_index)
{
if (File.Exists(input_path))
{
string file;
file = new StreamReader(input_path).ReadToEnd();
string[] lines = file.Split(new char[] { '\n' });
List<string[]> split_data = new List<string[]>();
for (int i = 0; i < lines.Length; i++)
split_data.Add(lines[i].Split(','));
List<int> allowed_for_replace_indices = new List<int>();
List<int> not_allowed_for_replace_indices = new List<int>();
// Check if the row has the value of 9th item then we are allowed to replace rows.
for (int i = 1; i < split_data.Count; i++)
{
if (split_data[i][has_value_index] != String.Empty)
allowed_for_replace_indices.Add(i);
else
not_allowed_for_replace_indices.Add(i);
}
List<int> rows_replaced = new List<int>();
List<int> rows_not_replaced = new List<int>();
// Loop through our replaceable indices dictionary.
for (int i = 0; i < replaceable.Count; i++)
{
int key = replaceable.ElementAt(i).Key;
int value = replaceable.ElementAt(i).Value;
// if both rows have 9th item then we can start replacement.
if (allowed_for_replace_indices.Contains(key) && allowed_for_replace_indices.Contains(value))
{
string temp = lines[value];
lines[value] = lines[key];
lines[key] = temp;
rows_replaced.Add(key);
rows_replaced.Add(value);
}
else
{
rows_not_replaced.Add(key);
rows_not_replaced.Add(value);
}
}
using (StreamWriter sw = new StreamWriter(output_path))
{
for (int i = 0; i < lines.Length; i++)
sw.WriteLine(lines[i]);
sw.Flush();
sw.Close();
}
MessageBox.Show("Rows replaced: " + String.Join("; ", rows_replaced.ToArray()) + " .\nRows not replaced: " + String.Join("; ", rows_not_replaced.ToArray()) + ".\nComplete.");
}
}
private void btn\u继续\u单击（对象发送者，事件参数e）
{
//此词典包含我们需要替换的行的索引。
字典可替换=新字典（）；
可替换。添加（4,1）；
可替换。添加（7,5）；
可替换。添加（13,11）；
字符串输入=string.Empty；
OpenFileDialog pfdg=新建OpenFileDialog（）；
if（pfdg.ShowDialog（）==DialogResult.OK）
{
输入=pfdg.FileName；
}
//我将结果放入另一个名为result.txt的文件中。您可以使用与输入相同的输出路径来覆盖该文件。
替换行（可替换，输入，@“C:\Users\Wallstrider\Documents\Visual Studio 2010\Projects\result.txt”，9）；
}
///
///替换文件的行取决于第9项是否存在。
///
///行包括替换。
///输入文件的路径。
///输出文件的路径。
///行中拆分数据值的索引。
私有void ReplaceLines（字典可替换、字符串输入路径、字符串输出路径、int有值索引）
{
if（File.Exists（输入路径））
{
字符串文件；
file=新的StreamReader（输入路径）.ReadToEnd（）；
string[]line=file.Split（新字符[]{'\n'}）；
列表拆分_数据=新列表（）；
对于（int i=0；i以下代码将替换（从零开始计数）4，1；7, 5; 13, 11; 如果我正确理解您的逻辑，则每行都有第9项。您能发布错误以及代码的哪一部分引发错误吗？“停止工作”不是对所发生情况的技术描述。如果你需要帮助，你需要学会像程序员一样思考，进行一些技术观察，然后在问题中报告这些细节。你正在创建嵌套的读卡器和编写器。想想看，这有意义吗？考虑1个读者和1个作家在同一水平和复制线符合你的逻辑。告诉我你需要替换哪些数据？我会帮忙的。它冻结了我的应用程序，我是C#新手，这就是为什么我不知道如何一步一步地调试。是的，我考虑过嵌套的读者和作者，但我能想出如何进行更正@Wallstrider：我需要根据第二行“P45R25”、“P45R42”、“P45R49”中的第9项，将第5行替换为第2行，将第8行替换为第6行，将第14行替换为第12行。。。谢谢大家的反馈…这里是你可以下载项目来测试代码的方法。名为WindowsFormsApplicationHelp1的存档。@Wallstrider。。。。非常感谢你的帮助。它工作得很好。另一件事是，若我不知道哪一行需要根据每行的第9项进行替换（这意味着若它是一个大的文本文件！！！）。再次非常感谢。。。。我用另一种方式来思考我的问题，你的解决方案。。。。。谢谢
private void btn_proceed_Click(object sender, EventArgs e)
{
// This dictionary contains indices of rows we need to replace.
Dictionary<int, int> replaceable = new Dictionary<int, int>();
replaceable.Add(4, 1);
replaceable.Add(7, 5);
replaceable.Add(13, 11);
string input = String.Empty;
OpenFileDialog pfdg = new OpenFileDialog();
if (pfdg.ShowDialog() == DialogResult.OK)
{
input = pfdg.FileName;
}
// I placed the result into the another file called result.txt. You can use output path as same as input to overwrite the file.
ReplaceLines(replaceable, input, @"C:\Users\Wallstrider\Documents\Visual Studio 2010\Projects\result.txt", 9);
}
/// <summary>
/// Replaces lines of the file depends on 9th item is exist.
/// </summary>
/// <param name="replaceable">Rows incides to replace.</param>
/// <param name="input_path">Path to the input file.</param>
/// <param name="output_path">Path to the output file.</param>
/// <param name="has_value_index">Index of a split data value in the row.</param>
private void ReplaceLines(Dictionary<int, int> replaceable, string input_path, string output_path, int has_value_index)
{
if (File.Exists(input_path))
{
string file;
file = new StreamReader(input_path).ReadToEnd();
string[] lines = file.Split(new char[] { '\n' });
List<string[]> split_data = new List<string[]>();
for (int i = 0; i < lines.Length; i++)
split_data.Add(lines[i].Split(','));
List<int> allowed_for_replace_indices = new List<int>();
List<int> not_allowed_for_replace_indices = new List<int>();
// Check if the row has the value of 9th item then we are allowed to replace rows.
for (int i = 1; i < split_data.Count; i++)
{
if (split_data[i][has_value_index] != String.Empty)
allowed_for_replace_indices.Add(i);
else
not_allowed_for_replace_indices.Add(i);
}
List<int> rows_replaced = new List<int>();
List<int> rows_not_replaced = new List<int>();
// Loop through our replaceable indices dictionary.
for (int i = 0; i < replaceable.Count; i++)
{
int key = replaceable.ElementAt(i).Key;
int value = replaceable.ElementAt(i).Value;
// if both rows have 9th item then we can start replacement.
if (allowed_for_replace_indices.Contains(key) && allowed_for_replace_indices.Contains(value))
{
string temp = lines[value];
lines[value] = lines[key];
lines[key] = temp;
rows_replaced.Add(key);
rows_replaced.Add(value);
}
else
{
rows_not_replaced.Add(key);
rows_not_replaced.Add(value);
}
}
using (StreamWriter sw = new StreamWriter(output_path))
{
for (int i = 0; i < lines.Length; i++)
sw.WriteLine(lines[i]);
sw.Flush();
sw.Close();
}
MessageBox.Show("Rows replaced: " + String.Join("; ", rows_replaced.ToArray()) + " .\nRows not replaced: " + String.Join("; ", rows_not_replaced.ToArray()) + ".\nComplete.");
}
}