IDictionary<string, IDictionary<string, string>> test = new Dictionary<string, Dictionary<string, string>>();
这个转换是错误的,为什么不能隐式Dictionary<string,Dictionary<string,string>> to IDictionary<string,IDictionary<string,string>>?
IDictionary<string, IDictionary<string, string>> test = new Dictionary<string, Dictionary<string, string>>();
这个转换是错误的,为什么不能隐式Dictionary<string,Dictionary<string,string>> to IDictionary<string,IDictionary<string,string>>?