c#读取/写入文件
using System;
using System.Data;
using System.Configuration;
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.IO;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
/**//// <summary>
/// 检查文件是否存在
/// </summary>
/// <param name="FilePath"></param>
private void ExistsFile(string FilePath)
{
if (!File.Exists(FilePath))
{
File.Create(FilePath);
}
}
//读取文件
protected void Button2_Click(object sender, EventArgs e)
{
ExistsFile(Server.MapPath("~/test/111.txt"));
//读取文件ASP.NET
StreamReader sr = new StreamReader(Server.MapPath("~/test/111.txt"), System.Text.Encoding.Default);
try
{
string input = sr.ReadToEnd();
sr.Close();
input = input.Replace("<br>", "\r\n");
Response.Write("<b>文件读取成功!</b>");
TextBox1.Text = input;
}
catch
{
Response.Write("<b>文件读取失败!</b>");
}
}
//写入文件
protected void Button1_Click(object sender, EventArgs e)
{
ExistsFile(Server.MapPath("~/test/111.txt"));
//写入文件
StreamWriter sw = new StreamWriter(Server.MapPath("~/test/111.txt"), false, System.Text.Encoding.Default);
try
{
sw.Write(TextBox1.Text);
sw.Close();
Response.Write("<b>文件写入成功！</b>");
}
catch
{
Response.Write("<b>文件写入失败！</b>");
}
}
}
