/// 判空工具类 class EmptyUtil { /// 判断是否为空,object的类型可以为:String Map List static bool isEmpty(Object object) { if (null == object) return true; if (object is String && object.isEmpty) { return true; } if (object is List && object.isEmpty) { return true; } if (object is Map && object.isEmpty) { return true; } return false; } }