????2007??W3C????????????????HTML5?????2014??10?μ?????????????淶?????????塣
?????????Щ??HTML5?????PC??????????????????????????????飬????????HTML5????????App???硣?????????е?Σ???????????????????HTML5?????????????????????????????????????
????????????????δ??????????????????HTML5???????????8??????????????

????HTML5???????W3C??1999????HTML4??Web????????????????????????????HTML????????????????Щ????????Web App???????г?????WHATWG????????2007??W3C??WHATWG?????????????????????HTML5??
????HTML5??????????????????????????м????????????????????????о?????????????????
???????????????????????????????????????????????????????????????飬?????????????2005??????????????????仯????????????
????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????VCD??????????????????????????????????????÷??????????????+????y?岥??????????????????????????????????
????????????????????????·??????????????????????У???????y???????????YouTube???????????????????????????ι??????????
????????HTML?????а?????????仯?????????????????δ??????????????????????????????????Flash??????????????????????????????????????????2005??Adobe???????Macromedia????Flash??????£???????????FLV??y???action script????????????????????????IT?????????????FLV??y???Flash??????????????Adobe???μ????????о?????????????
????????Flash??????????????????????W3C????????????Σ??????????????Э?????????—IE??IE?????????????????¢???λ????????????????IE Only????????????????????Щ?????????????????Web???磬???????????+Adobe??????
???????IT????????????????????????Google??PC????????????????????Web???????????????????????????iPhone?????????????????Appstore??Safari???????????????????1?Google???????????Mozilla??????δ??IE???λ???????????????YouTube??????Adobe???????????????????Google????IE?????????Adoble FLV?????????治??С?????
?????????????W3C???????λ???e??????????????HTML5?ɡ?
????????HTML5???????????????????2007??IE??Flash???????????
????HTML5?????Σ?Web???????¢????HTML5?????????????????????????Σ??????Web???????????????????????Web??????
????Web???????????????????1.WebApp??????Gmail??2.??y?壻3.???????????3??????????HTML5????????
????WebApp??HTML5??????????洢????????????????Input type=date????JS????socket???????????embed????????CSS3????…
??????y?壺HTML5??????Audio??Video
?????????HTML5??????Canvas??WebGL
???????????Google?????HTML5?????Header??Section???????????????????????????Щ????????
????HTML5??????y??????????????????????????iOS??????Flash????????????Flash?????????????IE????????
??????HTML5??????????????У??????Google???????????????г????????????????????????HTML5??淶??????????????????????Apple?????????????Safari??????WebKit????????Mac??iOS??Windows??????????Google?????????Mozilla????Firefox???????????????v8???棬???WebKit????2008????????Chrome??“IE????й淶+Flash?????????????????”????????????????????????д???IE?????????????¢???????????????譚Web?????????????IE6??????δ???£????????????Firefox????????
???????????????????У?????????м??????????淶??????????IE7??8??9??10???????????????????
????Adobe??Flash?????????Web??????λ??????????IE????б????????????????IE?г?????????????IE?μ?????汾????????????WebKit????????????????????????HTML6???????WebKit¢?????
????HTML5?????Σ??????????????Chrome??Safari????????????IE+Flash?????HTML5?????????????????????——???????????HTML5??????????????????????????????????HTML5????????PC??Mac??iPhone??iPad??Android??Windows Phone??????????????????Java??Flash???????????λ??????ζ???iOS??????????????о?????HTML5?????????????á???????????????????????????????C/S??????B/S?????????????Objective-C??Java???????????????????????β?????HTML5??
????W3C?????????Device API?????飬?HTML5?????Camera??GPS????????е?API??????鷳???????????????????????????????OS????????????API???????????????????????????????????OS???д?汾???????W3C???????????????λ??????????????????????????????????????????????????????????????????????????
????PhoneGap???????????????????????????????PhoneGap??????API??????????????????Adobe????PhoneGap?·?????????????λ???????????Adobe???PhoneGap??????????????????????????????????Adobe?????Flash?????????????棬?????PhoneGap?????Apache???????Cordova??
??????????????Cordova???λ????г?????????????????????????????????????????????????????????????????“???+HTML5”?????????????塣????????Cordova??????????“????????+HTML5?????”???Э?????App??
???????Facebook??????W3C??????????Mobile Web?????顣Facebook???Web?????????????OS????????????????????????????Google?????????????????Mobile Web????????????????????HTML5???????????????????????顣??????????Υ????????????????????????????????2012??Facebook??????HTML5????????????????ITy?壬HTML5????????乬??
????Facebook??η???HTML5??????????????HTML5???????????????App?????Twritter?????????????App??Facebook??HTML5?汾???????????????????Push???????????HTML5???????????????????????????????????HTML5????????л??????????????/???????????????????????????????????????????????????????????????????????????????HTML5??????о???????????
???????Facebook?????????????????????????????e???????Facebook?????????????—?????????????????????????????????????????????
????????????????????????????????Google??Chrome??????????Android?????????????Chrome??????WebKit???????????????Android???????????????iOS???????????????????????App Store?????????????Safari????????????????????????JavaScript????????Nitro????????????Google?????????????????????HTML5???????App?????淶????????HTML5?????????????
??????????????????????????????OS????????????????????????????????????????????????????????????£?iOS??Android????????????????????????????????????
????Facebook????PhoneGap?????????????????????????????????????????????????????????????
????HTML5?????????????????2014??10?μ??W3C????HTML5??????塣????????????磬??????????????OS????????????
????????HTML5??????壬??з?????????????????????HTML5????????????
?????????????????????e???????????????HTML5??????t????????????App???????HTML5??????????????App??????????????????????????App??
????????????HTML5????????????????????????HTML5??“?????”???????HTML5???????????????????????????????????ò????????

?????????????????????????HTML5??????????????App????????????????????????OS???????仯??????????????????????????HTML5??“?????”?????
????1.???????
????2011??iPhone 4s??CPU??A5??????iPhone 6??A8????????????η?????????????????????7.5??????3???7.5????????????????????HTML5??????????
????2.?????Google?????仯
????Google??2013????????Android 4.4???????Webview???????????Android WebKit???????????Chromium?????????????????μ?Android 5.0?????Webview???????Google Play Store?????£???Chrome????????????£??????????????????μ?????????棻???Apple???棬2012??iPhone 5??????HTML5??iOS????????????????Safari??JavaScript????????Nitro??????????????????iOS 8??????????????????????????????????Nitro????????????????????????????iOS??UIWebview??????????Nitro?????????????????JS????????????????????????????????????????????????????????仯?????HTML5???????????????????????????仯?????????????????????仯???????????????
????3.????????????
????PhoneGap??????????????????????????????????2014???iWeb?????????????????????????????????HTML5??????????????????
???????????????????????????????????????????????????????????????????????????????????÷????????????????????????ɡ???
????DCloud?????iWeb??????????????HTML5“???????”????????????????
????a)?????????HTML5?????????????棬?ò????????????μ???????????????????????
????b)?????HTML5????IDE???HBuilder???????????????
????c)????????40?????API?????JavaScript????????HTML5?????????????Native.js??????
????d)???????????????????MUI?????????м??K??????????????????????????÷?????????HTML5??????????????App?????????顣