C#文件读写IO操作代码,Asp.Net代码库,德仔网

代码语言
代码分类
【Asp.Net】 C#文件读写IO操作
作者:Dezai.CN / 发布于2012/11/6/ 566
<div><span style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;">1.前台代码</span></div>
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"><%@ Page Language="C#" AutoEventWireup="true" CodeFile="FileTest.aspx.cs" Inherits="FileTest" %>
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "<a href="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" style="color: rgb(51, 102, 153); text-decoration: initial;">http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd</a>">
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"><html xmlns="<a href="http://www.w3.org/1999/xhtml" style="color: rgb(51, 102, 153); text-decoration: initial;">http://www.w3.org/1999/xhtml</a>" >
<head runat="server">
 <title>文件IO操作</title>
</head>
<body>
 <form id="form1" runat="server">
 <asp:FileUpload ID="FuReport" runat="server" />
 
 <asp:Button ID="btnSave" runat="server" Text="Save" OnClick="btnSave_Click" />
 <asp:Button ID="btnLoad" runat="server" OnClick="btnLoad_Click" Text="Load" />
 <asp:Button ID="btnCheck" runat="server" OnClick="btnCheck_Click" Text="Check" />

 </form>
</body>
</html>
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;">
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;">2.后台代码
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;">using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.IO;
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;">public partial class FileTest : System.Web.UI.Page
{
 protected void Page_Load(object sender, EventArgs e)
 {
 if (!IsPostBack)
 {

 }
 }
 protected void btnSave_Click(object sender, EventArgs e)
 {
 string path = "C://";
 Save(FuReport, path);
 }
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> protected void btnLoad_Click(object sender, EventArgs e)
 {
 string path = "C://sql.txt";
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> FileInfo Fi = new FileInfo(path);
 if (Fi.Exists)
 {
 StreamReader Sdr = new StreamReader(path, System.Text.Encoding.UTF8);
 string sLine = "";
 ArrayList arr = new ArrayList();
 while (sLine != null)
 {
 sLine = Sdr.ReadLine();
 if (sLine != null)
 {
 arr.Add(sLine);
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> }
 }
 Sdr.Close();
 foreach (string s in arr)
 {
 Response.Write(s + "");
 }
 }
 else
 Response.Write("No file matched!!");
 }
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> public bool Save(System.Web.UI.WebControls.FileUpload fuFile, string EndPath)
 {
 string FilePathName = "";
 try
 {
 FilePathName = System.IO.Path.GetFileName(fuFile.FileName);
 fuFile.PostedFile.SaveAs(EndPath + "//" + FilePathName);
 }
 catch (Exception ex)
 {
 throw ex;
 }
 return true;
 }
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> public byte[] Load(string FilePath)
 {
 FileInfo fi = new FileInfo(FilePath);
 byte[] fileByte;
 try
 {
 FileStream fs = fi.OpenRead();
 fileByte = new byte[fs.Length];
 fs.Read(fileByte, 0, Convert.ToInt32(fs.Length));
 }
 catch (Exception ex)
 {
 throw ex;
 }
 return fileByte;
 }
 protected void btnCheck_Click(object sender, EventArgs e)
 {
 string path = "C://sql.txt";
 FileInfo Fi = new FileInfo(path);
 if (Fi.Exists)
 {
 StreamReader Sdr = new StreamReader(path, System.Text.Encoding.UTF8);
 string sLine = "";
 string A = "";
 string B = "";
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> ArrayList arr = new ArrayList();
 while (sLine != null)
 {
 sLine = Sdr.ReadLine();
 if (sLine != null)
 {
 arr.Add(sLine);
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> A=A+sLine.Replace("A","");
 B = B + sLine.Replace("B", "");
 }
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> }
 Sdr.Close();
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> WriteFile("C://A.txt", A);
 WriteFile("C://B.txt", B);
<p style="color: rgb(51, 51, 51); font-family: Arial; font-size: 14px; line-height: 26px;"> foreach (string s in arr)
 {
 Response.Write(s + "");
 }
 }
 else
 Response.Write("No file matched!!");
 }
 /// < ummary>
 /// 写文件
 /// </summary>
 /// < aram name="Path">文件路径</param>
 /// < aram name="Strings">文件内容</param>
 public static void WriteFile(string Path, string Strings)
 {
 if (!System.IO.File.Exists(Path))
 {
 System.IO.FileStream f = System.IO.File.Create(Path);
 f.Close();
 }
 System.IO.StreamWriter f2 = new System.IO.StreamWriter(Path, true, System.Text.Encoding.GetEncoding("gb2312"));
 f2.WriteLine(Strings);
 f2.Close();
 f2.Dispose();
 }
}
试试其它关键字
　读写IO操作　
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