C# 访问多个文件

C# 访问多个文件,c#,C#,我的程序没有在文件中循环。程序将所有文件名正确写入“文件列表”。然后我希望它输出每个文件中数据列表的平均值、最小值和最大值。但是,无论何时运行,它都只输出一个文件的平均值、最小值和最大值。我认为这种循环运行得不太好 我尝试在textwriter tw3和它的右括号之间创建额外的循环,但这不起作用。我也尝试了同样的tw4,但还是不起作用。我不确定问题是否是由于循环造成的,或者我是否没有使用正确的语法调用文件夹中的每个文件。整个代码如下 namespace Filereader_m_15062012

我的程序没有在文件中循环。程序将所有文件名正确写入“文件列表”。然后我希望它输出每个文件中数据列表的平均值、最小值和最大值。但是,无论何时运行,它都只输出一个文件的平均值、最小值和最大值。我认为这种循环运行得不太好

我尝试在textwriter tw3和它的右括号之间创建额外的循环,但这不起作用。我也尝试了同样的tw4,但还是不起作用。我不确定问题是否是由于循环造成的,或者我是否没有使用正确的语法调用文件夹中的每个文件。整个代码如下

namespace Filereader_m_15062012
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        string[] fileEntries;

        private void Form1_Load(object sender, EventArgs e)
        {
            DialogResult result = folderBrowserDialog1.ShowDialog(); // Show the dialog.
            // create a list to insert the data into
            //put all the files in the root directory into array
            string[] fileEntries = Directory.GetFiles(folderBrowserDialog1.SelectedPath, "*.csv");

            // Display all files.
            TextWriter tw1 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/listoffiles.txt");

            List<string> filenames = new List<string>();
            tw1.WriteLine("--- Files: ---");
            foreach (string path in fileEntries)
            {
                tw1.WriteLine(path);
            }

            tw1.Close();

            TextWriter tw2 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/errorlist.txt");
            foreach (string path in fileEntries)
            {  
                    string text = "";

                    // create a list to insert the data into
                    List<float> noise = new List<float>();

                    TextWriter tw3 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/rawdata.txt");

                    string file = path;

                    FileInfo src = new FileInfo(file);
                    TextReader reader = src.OpenText();
                    text = reader.ReadLine();

                    // while the text being read in from reader.Readline() is not null
                    while (text != null)
                    {
                        text = reader.ReadLine();

                        {
                            while (text != null)
                            {
                                text = reader.ReadLine();
                                if (text != null)
                                {
                                    string[] words = text.Split(',');
                                    noise.Add(Convert.ToSingle(words[3]));

                                    // write text to a file
                                    tw3.WriteLine(text);
                                    //foreach (string word in words)
                                    //{
                                    //    tw.WriteLine(word);
                                    //}
                                }

                            }
                        }

                        tw3.Close();


                        int count = 0;
                        float sum = 0;
                        float mean = 0;
                        float max = 0;
                        float min = 100;
                        List<string> means = new List<string>();
                        List<string> maximums = new List<string>();
                        List<string> minimums = new List<string>();

                        TextWriter tw4 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/noise.txt");

                            foreach (float ns in noise)
                            {
                                tw4.WriteLine(Convert.ToString(ns));
                                count++;
                                sum += ns;
                                mean = sum / count;

                                float min1 = 0;


                                if (ns > max)
                                    max = ns;

                                else if (ns < max)
                                    min1 = ns;

                                if (min1 < min && min1 > 0)
                                    min = min1;
                                else
                                    min = min;
                            }

                            means.Add(Convert.ToString(mean));
                            maximums.Add(Convert.ToString(max));
                            minimums.Add(Convert.ToString(min));


                            TextWriter tw5 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/summarymeans.txt");
                            tw5.WriteLine("Mean Noise");
                            tw5.WriteLine("==========");
                            foreach (string m in means)
                            {
                                tw5.WriteLine("mote_noise: {0}", Convert.ToString(m));
                            }

                            tw5.Close();

                            TextWriter tw6 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/summarymaximums.txt");
                            tw6.WriteLine("Maximum Noise");
                            tw6.WriteLine("=============");
                            foreach (string m in maximums)
                            {
                                tw6.WriteLine("mote_noise: {0}", Convert.ToString(m));
                            }

                            tw6.Close();

                            TextWriter tw7 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/summaryminimums.txt");
                            tw7.WriteLine("Minimum Noise");
                            tw7.WriteLine("=============");
                            foreach (string m in maximums)
                            {
                                tw7.WriteLine("mote_noise: {0}", Convert.ToString(m));
                            }

                            tw7.Close();


                        tw4.Close();


                    }


                tw2.Close();
            }
        }        


        private void folderBrowserDialog1_HelpRequest(object sender, EventArgs e)
        {

        }

    }
}
namespace文件读取器_m_15062012
{
公共部分类Form1:Form
{
公共表格1()
{
初始化组件();
}
字符串[]文件项;
私有void Form1\u加载(对象发送方、事件参数e)
{
DialogResult=folderBrowserDialog1.ShowDialog();//显示对话框。
//创建一个列表以将数据插入其中
//将根目录中的所有文件放入数组
string[]fileEntries=Directory.GetFiles(folderBrowserDialog1.SelectedPath,“*.csv”);
//显示所有文件。
TextWriter tw1=新的StreamWriter(folderBrowserDialog1.SelectedPath+“/listoffiles.txt”);
列表文件名=新列表();
tw1.WriteLine(“--Files:--”);
foreach(文件项中的字符串路径)
{
tw1.写线(路径);
}
tw1.Close();
TextWriter tw2=新的StreamWriter(folderBrowserDialog1.SelectedPath+“/errorlist.txt”);
foreach(文件项中的字符串路径)
{  
字符串文本=”;
//创建一个列表以将数据插入其中
列表噪声=新列表();
TextWriter tw3=新的StreamWriter(folderBrowserDialog1.SelectedPath+“/rawdata.txt”);
字符串文件=路径;
FileInfo src=新的FileInfo(文件);
TextReader=src.OpenText();
text=reader.ReadLine();
//从reader.Readline()读入的文本不为空
while(text!=null)
{
text=reader.ReadLine();
{
while(text!=null)
{
text=reader.ReadLine();
如果(文本!=null)
{
string[]words=text.Split(',');
noise.Add(转换为single(单词[3]);
//将文本写入文件
tw3.文字线(文本);
//foreach(单词中的字符串)
//{
//tw.WriteLine(单词);
//}
}
}
}
tw3.Close();
整数计数=0;
浮点数和=0;
浮动平均值=0;
浮动最大值=0;
浮动最小值=100;
列表意味着=新列表();
列表最大值=新列表();
列表最小值=新列表();
TextWriter tw4=新的StreamWriter(folderBrowserDialog1.SelectedPath+“/noise.txt”);
foreach(噪声中的浮子)
{
tw4.WriteLine(Convert.ToString(ns));
计数++;
总和+=ns;
平均值=总和/计数;
float min1=0;
如果(ns>max)
max=ns;
否则如果(ns0)
min=min1;
其他的
min=min;
}
平均值。添加(转换为字符串(平均值));
添加最大值(转换为字符串(最大值));
最小值。添加(转换为字符串(最小值));
TextWriter tw5=新的StreamWriter(folderBrowserDialog1.SelectedPath+“/summarymeans.txt”);
tw5.写入线(“平均噪声”);
tw5.写线(“================”);
foreach(字符串m的平均值)
{
tw5.WriteLine(“mote_noise:{0}”,Convert.ToString(m));
}
tw5.Close();
TextWriter tw6=新的StreamWriter(folderBrowserDialog1.SelectedPath+“/summarymaximums.txt”);
tw6.写入线(“最大噪声”);
tw6.写线(“======================”);
foreach(最大值为m的字符串)
{
tw6.WriteLine(“mote_noise:{0}”,Convert.ToString(m));
}
tw6.Close();
TextWriter tw7=新的StreamWriter(folderBrowserDialog1.SelectedPath+“/summaryminimums.txt”);
tw7.写入线(“最小噪声”);
tw7.写线(“======================”);
foreach(最大值为m的字符串)
        foreach (string path in fileEntries)
        {
            ...
            string text = reader.ReadLine();

            // while the text being read in from reader.Readline() is not null
            while (text != null)
            {
                string[] words = text.Split(',');
                noise.Add(Convert.ToSingle(words[3]));

                // write text to a file
                tw3.WriteLine(text);
                //foreach (string word in words)
                //{
                //    tw.WriteLine(word);
                //}

                ...

                text = reader.ReadLine();
            }
            tw3.Close();
        }
// while the text being read in from reader.Readline() is not null
while (text != null)
{
     string[] words = text.Split(',');
     noise.Add(Convert.ToSingle(words[3]));
     // write text to a file
     tw3.WriteLine(text);
     text = reader.ReadLine();
 }
foreach (float ns in noise)
{
     tw4.WriteLine(Convert.ToString(ns));
     count++;
     sum += ns;
     mean = sum / count;
     float min1 = 0;
     if (ns > max)
     max = ns;
     else if (ns < max)
         min1 = ns;
     if (min1 < min && min1 > 0)
         min = min1;
     means.Add(Convert.ToString(mean));
     maximums.Add(Convert.ToString(max));
     minimums.Add(Convert.ToString(min));
 }
  private void Form1_Load(object sender, EventArgs e)
              DialogResult result = folderBrowserDialog1.ShowDialog(); // Show the dialog.
        // create a list to insert the data into
        //put all the files in the root directory into array
        string[] fileEntries = Directory.GetFiles(folderBrowserDialog1.SelectedPath, "*.csv");

        // Display all files.
        TextWriter tw1 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/listoffiles.txt");

        List<string> filenames = new List<string>();
        tw1.WriteLine("--- Files: ---");
        foreach (string path in fileEntries)
        {
            tw1.WriteLine(path);
        }

        tw1.Close();

        TextWriter tw2 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/errorlist.txt");
        foreach (string path in fileEntries)
        {
            string text = "";

            // create a list to insert the data into
            List<float> noise = new List<float>();

            TextWriter tw3 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/rawdata.txt");

            string file = path;

            FileInfo src = new FileInfo(file);
            TextReader reader = src.OpenText();
            text = reader.ReadLine();

            // while the text being read in from reader.Readline() is not null
            while (text != null)
            {
                string[] words = text.Split(',');
                noise.Add(Convert.ToSingle(words[3]));

                // write text to a file
                tw3.WriteLine(text);
                text = reader.ReadLine();
            }

            tw3.Close();

            int count = 0;
            float sum = 0;
            float mean = 0;
            float max = 0;
            float min = 100;
            List<string> means = new List<string>();
            List<string> maximums = new List<string>();
            List<string> minimums = new List<string>();

            TextWriter tw4 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/noise.txt");

            foreach (float ns in noise)
            {
                tw4.WriteLine(Convert.ToString(ns));
                count++;
                sum += ns;
                mean = sum / count;
                float min1 = 0;
                if (ns > max)
                    max = ns;

                else if (ns < max)
                    min1 = ns;

                if (min1 < min && min1 > 0)
                    min = min1;
                means.Add(Convert.ToString(mean));
                maximums.Add(Convert.ToString(max));
                minimums.Add(Convert.ToString(min));
            }

            TextWriter tw5 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/summarymeans.txt");
            tw5.WriteLine("Mean Noise");
            tw5.WriteLine("==========");
            foreach (string m in means)
            {
                tw5.WriteLine("mote_noise: {0}", Convert.ToString(m));
            }

            tw5.Close();

            TextWriter tw6 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/summarymaximums.txt");
            tw6.WriteLine("Maximum Noise");
            tw6.WriteLine("=============");
            foreach (string m in maximums)
            {
                tw6.WriteLine("mote_noise: {0}", Convert.ToString(m));
            }
            tw6.Close();

            TextWriter tw7 = new StreamWriter(folderBrowserDialog1.SelectedPath + "/summaryminimums.txt");
            tw7.WriteLine("Minimum Noise");
            tw7.WriteLine("=============");
            foreach (string m in maximums)
            {
                tw7.WriteLine("mote_noise: {0}", Convert.ToString(m));
            }
            tw7.Close();
            tw4.Close();
        }


        tw2.Close();
 }