显示清除网站中的所有缓存

 //清除所有缓存 
     protected void RemoveAllCache() 
     { 
        System.Web.Caching.Cache _cache = HttpRuntime.Cache; 
        IDictionaryEnumerator CacheEnum = _cache.GetEnumerator(); 
        ArrayList al = new ArrayList(); 
        while (CacheEnum.MoveNext()) 
        { 
           al.Add(CacheEnum.Key); 
        } 
        foreach (string key in al) 
        { 
           _cache.Remove(key); 
        } 
        show(); 
     } 
     //显示所有缓存 
     void show() 
     { 
        string str = ""; 
        IDictionaryEnumerator CacheEnum = HttpRuntime.Cache.GetEnumerator(); 
        
        while (CacheEnum.MoveNext()) 
        { 
           str += "缓存名<b>[" + CacheEnum.Key+"]</b><br />" ; 
        } 
       //"当前网站总缓存数:" + HttpRuntime.Cache.Count + "<br />"+str; 
     }