NSAttributedString:
http://blog.csdn.net/kmyhy/article/details/8895638
CTFramesetterSuggestFrameSizeWithConstraints:
http://blog.sina.com.cn/s/blog_6308b98c0101byh9.html
tiechui 2013-12-26 08:33 原文
NSAttributedString:
http://blog.csdn.net/kmyhy/article/details/8895638
CTFramesetterSuggestFrameSizeWithConstraints:
http://blog.sina.com.cn/s/blog_6308b98c0101byh9.html