objective-c - NSMutableIndexSet 到 NSMutableArray

Question

我有带有索引的NSMutableIndexSet，我想用他的索引创建一个NSArray ..

NSMutableIndexSet *mutableIndexSet = [NSMutableIndexSet new];
[mutableIndexSet addIndex:0];
[mutableIndexSet addIndex:2];
[mutableIndexSet addIndex:4];

我该怎么做？？

谢谢

Answer 1

[mutableIndexSet enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL *stop) {
    [myMutableArray addObject:[NSNumber numberWithInteger:idx]];
}];