图片简单处理

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Pictrue.aspx.cs" Inherits="Make_Pictrue_Pictrue" %>

<!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></title>
    <style type="text/css">
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Image ID="IMG1" runat="server" ImageUrl="~/App_Themes/Image/0.jpg" />
        <asp:Image ID="IMG2" runat="server" />
        <asp:Image ID="IMG3" runat="server" />
        <asp:Image ID="IMG4" runat="server" />
        <br />
        
        <asp:Button ID="Btn_SuoFang" runat="server" Text="缩放" OnClick="Click_Btn_SuoFang" />
        <asp:Button ID="Btn_ZiCai" runat="server" Text="自定义缩放" OnClick="Click_Btn_ZiCai" />
        <asp:Button ID="Btn_ShuiYing" runat="server" Text="水印" OnClick="Click_Btn_ShuiYing" />
    </div>
    </form>
</body>
</html>

后台

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Make_Pictrue_Pictrue : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            
        }
    }

    /// <summary>
    /// 缩放图片
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Click_Btn_SuoFang(object sender, EventArgs e)
    {
        Make_pictrue img = new Make_pictrue();

        System.IO.FileStream fs = new System.IO.FileStream(Server.MapPath("~/App_Themes/Image/0.jpg"), System.IO.FileMode.Open);

        byte[] buffer = new byte[fs.Length];

        fs.Read(buffer, 0, buffer.Length);

        string dirpath = Server.MapPath("~/App_Themes/Image/1.jpg");

        img.CutForSquare(fs, dirpath, 100, 100);

        fs.Close();

        IMG3.ImageUrl = "~/App_Themes/Image/1.jpg";
    }


    /// <summary>
    /// 自定义截图缩放
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Click_Btn_ZiCai(object sender, EventArgs e)
    {
        Make_pictrue img = new Make_pictrue();

        System.IO.FileStream fs = new System.IO.FileStream(Server.MapPath("~/App_Themes/Image/0.jpg"), System.IO.FileMode.Open);

        byte[] buffer = new byte[fs.Length];

        fs.Read(buffer, 0, buffer.Length);

        string dirpath = Server.MapPath("~/App_Themes/Image/2.jpg");

        img.CutForCustom(fs, dirpath, 300, 300, 100);

        fs.Close();

        IMG2.ImageUrl = "~/App_Themes/Image/2.jpg";
    }


    /// <summary>
    /// 水印
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Click_Btn_ShuiYing(object sender, EventArgs e)
    {
        Make_pictrue img = new Make_pictrue();

        System.IO.FileStream fs = new System.IO.FileStream(Server.MapPath("~/App_Themes/Image/0.jpg"), System.IO.FileMode.Open);

        byte[] buffer = new byte[fs.Length];

        fs.Read(buffer, 0, buffer.Length);

        string dirpath = Server.MapPath("~/App_Themes/Image/3.jpg");

        string Shuipath = Server.MapPath("~/App_Themes/Image/shuiyin.jpg");

        img.ZoomAuto(fs, dirpath,150,150,"123",Shuipath);

        fs.Close();

        IMG4.ImageUrl = "~/App_Themes/Image/3.jpg";
    }

}

简单的处理一下图片算是一点小积累~