NSArray * arr1 = @[@a,@b,@c];NSArray * arr2 = @[@c,@d,@e,@f];NSPredicate * filterPredicate = [NSPredicate predicateWithFormat:@” (SELF IN %@)”,arr1];NSArray * filter = [arr2 filteredArrayUsingPredicate:filterPredicate];NSLog(@”%@”,filter);
,一个人身边的位置只有这么多,