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//文件下载，里面有exe可直接运行

http://download.csdn.net/detail/pukuimin1226/6001759

Code：

        #region CreateThumbnail
        /// <summary>
        /// 生成缩略图
        /// </summary>
        /// <param name="uploadObject">上传的HttpPostedFile或图片物理路径</param>
        /// <param name="uploaddir">上传文件夹相对路径</param>
        /// <param name="ext">后缀（如：.jpg）</param>
        /// <param name="t_width">缩略图宽</param>
        /// <param name="t_height">缩略图高</param>
        /// <param name="filename">文件夹，不含路径和后缀</param>
        /// <param name="tm">枚举类-缩略图的样式</param>
        /// <returns>返回生成图片的路径</returns>
        public static string CreateThumbnail(object uploadObject, string uploaddir, string ext, int t_width, int t_height, string filename, ThumbModel tm)
        {
            System.Drawing.Image thumbnail_image = null;
            System.Drawing.Image original_image = null;
            System.Drawing.Bitmap final_image = null;
            System.Drawing.Graphics graphic = null;
            MemoryStream ms = null;

压缩view的内容，可加过滤器

    public class GzipFilter : ActionFilterAttribute
    {
        public override void OnResultExecuting(ResultExecutingContext filterContext)
        {
            string acceptEncoding = filterContext.HttpContext.Request.Headers["Accept-Encoding"];
            if (String.IsNullOrEmpty(acceptEncoding)) return;
            var response = filterContext.HttpContext.Response;
            acceptEncoding = acceptEncoding.ToUpperInvariant();
            if (acceptEncoding.Contains("GZIP"))
            {
                response.AppendHeader("Content-Encoding", "gzip");
                response.Filter = new GZipStream(response.Filter, CompressionMode.Compress);
            }
            else if (acceptEncoding.Contains("DEFLATE"))
            {
                response.AppendHeader("Content-Encoding", "deflate");
                response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress);
            }
        }
    }

//构造Lambda语句

       private static Expression<Func<TElement, bool>> BuildWhereInExpression<TElement, TValue>(Expression<Func<TElement, TValue>> propertySelector, IEnumerable<TValue> values)
        {
            ParameterExpression p = propertySelector.Parameters.Single();
            if (!values.Any())
                return e => false;
            var equals = values.Select(value => (Expression)Expression.Equal(propertySelector.Body, Expression.Constant(value, typeof(TValue))));
            var body = equals.Aggregate<Expression>((accumulate, equal) => Expression.Or(accumulate, equal));
            return Expression.Lambda<Func<TElement, bool>>(body, p);
        }