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   源码介绍

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using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using ThoughtWorks.QRCode.Codec;

namespace Web
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!Page.IsPostBack)
            {
                QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
                qrCodeEncoder.QRCodeScale = 4;
                qrCodeEncoder.QRCodeVersion = 5;
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
                String data = "身份证号：41071119851778190，准驾车型：C1，考试日期：2013-02-11";

                System.Drawing.Bitmap image = qrCodeEncoder.Encode(data);
                System.IO.MemoryStream MStream = new System.IO.MemoryStream();
                image.Save(MStream, System.Drawing.Imaging.ImageFormat.Gif);
                Response.ClearContent();
                Response.ContentType = "image/Gif";
                Response.BinaryWrite(MStream.ToArray());
            }
        }
    }
}