C# Cache的类方法

public class DataCache
    {
        /// <summary>
        /// 获取当前应用程序指定CacheKey的Cache值
        /// </summary>
        /// <param name="CacheKey"></param>
        /// <returns></returns>
        public static object GetCache(string CacheKey)
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            return objCache[CacheKey];
        }

/// <summary>
        /// 设置当前应用程序指定CacheKey的Cache值
        /// </summary>
        /// <param name="CacheKey"></param>
        /// <param name="objObject"></param>
        public static void SetCache(string CacheKey, object objObject)
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            objCache.Insert(CacheKey, objObject);
        }

/// <summary>
        /// 移除指定数据缓存
        /// </summary>
        public static void RemoveCache(string CacheKey)
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            objCache.Remove(CacheKey);
        }

/// <summary>
        /// 清空所有的Cache
        /// </summary>
        public static void RemoveAllCache()
        {
            List<string> cacheKeys = new List<string>();
            IDictionaryEnumerator cacheEnum = HttpContext.Current.Cache.GetEnumerator();
            while (cacheEnum.MoveNext())
            {
                cacheKeys.Add(cacheEnum.Key.ToString());
            }
            foreach (string cacheKey in cacheKeys)
            {
                HttpContext.Current.Cache.Remove(cacheKey);
            }
        }

}