public static class Converter    {        /// <summary>        /// 转换为其他继承IConvertible的类型        /// </summary>        /// <typeparam name="T">转换的类型</typeparam>        /// <param name="value">要转换的值</param>        /// <param name="success">是否成功</param>        /// <returns></returns>        public static T To<T>(this IConvertible value, out bool success) where T : IConvertible        {            if (value =http://www.mamicode.com/= null)            {                success = true;                return default(T);            }            Type tResult = typeof(T);            if (tResult == typeof(string))            {                success = true;                return (T)(object)value.ToString();            }            TryParseDelegate<T> tryParseDelegate;            if (_TryParse.ContainsKey(tResult.FullName))            {                tryParseDelegate = (TryParseDelegate<T>)_TryParse[tResult.FullName];            }            else            {                MethodInfo mTryParse = tResult.GetMethod("TryParse", BindingFlags.Public | BindingFlags.Static, Type.DefaultBinder, new Type[] { typeof(string), tResult.MakeByRefType() }, new ParameterModifier[] { new ParameterModifier(2) });                tryParseDelegate = (TryParseDelegate<T>)Delegate.CreateDelegate(typeof(TryParseDelegate<T>), mTryParse);                _TryParse.Add(tResult.FullName, tryParseDelegate);            }            T result;            success = tryParseDelegate(value.ToString(), out result);            return result;        }        /// <summary>        /// 转换为其他继承IConvertible的类型        /// </summary>        /// <typeparam name="T">转换的类型</typeparam>        /// <param name="value">要转换的值</param>        /// <returns></returns>        public static T To<T>(this IConvertible value) where T : IConvertible        {            bool success;            return To<T>(value, out success);        }        private delegate bool TryParseDelegate<T>(string s, out T tResult) where T:IConvertible;        private static Dictionary<string, object> _TryParse = new Dictionary<string, object>();    }}