asp.net中上传图片文件实现防伪图片水印并写入数据库

代码如下:// 涉及命名空间 using System; using System.Collections; using System.ComponentModel; using System.Data; using System.Data.SqlClient; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.Web; using System.Configuration; // 方法 public void AddUser(string Perso