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##二级标题
这是一首简单的小情歌
###三级标题
引用来自x5forever
If you give me a chance,I will surprise you.
#pragma mark - collectionView dataSource / delegate
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{
return 4;
}
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
return section == 2 ? _titleArray.count : 1;
}