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 == 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>();
    }

}