这种方法通过类型别名和转换器封装了平台差异，避免了平台侧重复编写转换逻辑。
Want our dating and relationships stories and more in your inbox? Sign up for Mashable's Top Stories newsletter today.。快连下载安装对此有专业解读
，这一点在Line官方版本下载中也有详细论述
Range queries ask "what's inside this box?" But sometimes the question is "what's nearest to this location?" This is the nearest neighbor problem, and you don't know how big your search radius should be. The nearest point might be right next to you or far away.，推荐阅读爱思助手下载最新版本获取更多信息
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