今天做一个AJAX案例时,浏览器监控到如下错误: XMLHttpRequest cannot load http://54.169.69.60:8081/process_message. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://54.169.69.60' is therefore not allowed access. 网站地址是 http://54.
---恢复内容开始--- 怎样在UICollectionView中添加Header和footer 转载于http://my.oschina.net/zboy/blog/221525 摘要 来自-http://www.appcoda.com/supplementary-view-uicollectionview-flow-layout/ iOS UICollectionViewController 目录[-] Tweak the Margin of Your Content using Secti