// 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 PersonName, string PersonEmail, string PersonSex, string PersonDOB, string PersonImage, string PersonImageType)
{
 string strImageType = userImage.PostedFile.ContentType;
 Stream ImageStream = userImage.PostedFile.InputStream;

 // 加水印----------------->
 string wImageFile = Server.MapPath("/bkwww/image/HomeSign.gif"); // 要加的水印图
 Image sImage = Image.FromStream(ImageStream); // 从 Http 输入流创建 image
 Image wImage = Image.FromFile(wImageFile);

 // 绘图
 Graphics g = Graphics.FromImage(sImage);
 g.DrawImage(wImage, new Rectangle(0, 0, wImage.Width, wImage.Height), 0, 0, wImage.Width, wImage.Height, GraphicsUnit.Pixel);
  
 // 保存，并将 image 转化为 byte[]
 MemoryStream ms=new MemoryStream();
 byte[] myImage=null;
 sImage.Save(ms, ImageFormat.Gif);
 myImage = ms.GetBuffer();
 //------------------------>
  

 // 写入数据库
 string strConn = ConfigurationSettings.AppSettings["ConnectionString"];
 SqlConnection myConnection = new SqlConnection(strConn);
 SqlCommand myCommand = new SqlCommand("sp_person_isp", myConnection);
 myCommand.CommandType = CommandType.StoredProcedure;

 myCommand.Parameters.Add("@PersonEmail", SqlDbType.VarChar, 255).Value = PersonEmail;
 myCommand.Parameters.Add("@PersonName", SqlDbTy

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