摘要：
开发工具使用Mac的安装盘或从apple站点下载Xcode开发代码使用扩展名的分类 application delegate需要处理的内容ƒAt launch time, it must create an application’s windows and display them to the user.l It must initialize your data.l It must respond to “quit” requests.l It must handle low-memory warnings.建立的各种项目TemplateØ A Window-Based Applicat 阅读全文
