iOS array 与 data 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);