C# 类库中的 Server.Mappath

使用Server.MapPath获取服务器上的文件路径

csharp
string relativePath = "~/Images/logo.png";
string absolutePath = Server.MapPath(relativePath);

html
    
    

csharp
protected void Page_Load(object sender, EventArgs e)
{
    if (Request.Files.Count > 0)
    {
        HttpPostedFile file = Request.Files[0];
        
        if (file != null && file.ContentLength > 0)
        {
            string fileName = Path.GetFileName(file.FileName);
            string savePath = Server.MapPath("~/Uploads/") + fileName;
            
            file.SaveAs(savePath);
            
            // 保存成功，显示成功信息
            Response.Write("文件上传成功！");
        }
    }
}