NSData与NSArray相互转换

//将NSArray转化为NSData类型

        NSData *data = [NSKeyedArchiver archivedDataWithRootObject:Array];

        NSLog(@"data = %@",data);

 

//将NSData转化为NSArray类型

        NSArray *array = [NSKeyedUnarchiver unarchiveObjectWithData:data];

        NSLog(@"array = %@",array);