Swift 5.0 官方文档中文翻译 -- (版本兼容)Version Compatibility
该文章翻译自apple官方文档:TheSwiftProgrammingLanguage(Swift5.0)原文:ThisbookdescribesSwift5,thedefaultversionofSwiftthat’sincludedinXcode10.2.YoucanuseXcode10.2tobuildtargetsthatarewrittenineitherSwift5,Swift4.2,