发布时间：2014-10-20 11:45:59
28个让关键词排名明显改观的SEO技巧：关键词位置、密度、处理URL中出现关键词（英文）网页标题中出现关键词（1-3个）关键词标签中出现关键词（1-3个）描述标签中出现关键词（主关键词重复2次）内容中自然.........【阅读全文】
发布时间：2014-08-21 21:38:28
playground好于在于能一边写代码一边看到输出的常量变量的值。不需要运行模拟器。 我们来试一下该工具的用法。打开xcode6开发工具，选择Get started with a playground.这个功能可以边输入代码，一边看到常量或变量的值。 保存为SwiftPlayground.playground,点击create进入编辑器。.........【阅读全文】
发布时间：2014-08-21 21:34:01
一、什么是Swift?1.Swift 是一种新的编程语言，用于编写 iOS 和 OS X 应用。2.Swift 结合了 C 和 Objective-C 的优点并且不受 C 兼容性的限制。3.Swift 采用安全的编程模式并添加了很多新特性，这将使编程更简单，更灵活，也更有趣。4.Swift 是基于成熟而且倍受喜爱的 Cocoa 和 Cocoa Touch 框架，它的降.........【阅读全文】
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