上传图片
<%@ Page Language="C#" AutoEventWireup="true"CodeFile="Default.aspx.cs" Inherits="_Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server" enctype="multipart/form-data">
<div>
<input id="input_image" type="file" runat="server" />
<asp:Button ID="btn_upload" runat="server" OnClick="btn_upload_Click" Text="upload" /></div>
</form>
</body>
</html>
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)
{
// string path = this.Server.MapPath("//");
//string image_name=this.input_image.PostedFile.FileName;
string new_name = DateTime.Now.ToString("YYYYMMDDHHMMSS");
}
protected void btn_upload_Click(object sender, EventArgs e)
{
string imgfull_name=this.input_image.PostedFile.FileName;
string img_name = this.input_image.PostedFile.FileName.Substring(imgfull_name.LastIndexOf("\\")+1);
string time_name = DateTime.Now.ToString("yyyyMMddHHmmss") + ".jpg";
// this.input_image.PostedFile.SaveAs(Server.MapPath("upload")+"\\"+img_name);
this.input_image.PostedFile.SaveAs(Server.MapPath("upload") + "\\" + time_name);
}
}
文档来源：51CTO技术博客https://blog.51cto.com/smallfa/3171519
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