public override bool HasKey(string key)
{
#if !(NETCORE || CORE)
return(_memoryCache.Contains(key));
#else
object obj;
return(_memoryCache.TryGetValue(key, out obj));
#endif
}
public bool Exists(string key)
{
#if !CORE_CLR
return(_innerCache.Contains(key));
#else
object result;
return(_innerCache.TryGetValue(key, out result));
#endif
}
/// <summary>
/// 判断缓存是否已存在
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public bool Exist(string key)
{
#if netstandard2_0
Cache.TryGetValue(key, out object value);
return(value != null);
#endif
#if net40
return(Cache.Get(key) != null);
#endif
}
