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Thetagisusedtospecifymultiplemediaresourcesformediaelements,suchasand.Thetagallowsyoutospecifyalternative ...
TheHTMLtagisusedtospecifymultiplemediaresourcesonmediaelements(suchasand).Thiselementallowsyoutospecify ...
2019年9月4日—ThetaginHTMLisusedtoattachmultimediafileslikeaudio,videoandpictures.The,andelementscontain ...
实例.拥有两份源文件的音频播放器。浏览器应该选择它所支持的文件（如果有的话）：
以下示例說明了HTML中的標記：.範例1：本示例將標記與視頻媒體文件一起使用。HTMLsourceTag ...
Thetagisanemptyelement.Itmeansthatthetagdoesnothaveanycontent,aswellasaclosingtag.ThetagisoneoftheHTML5 ...
5天前—None,itisanemptyelement.Tagomission,Itmusthavestarttag,butmustnothaveanendtag.DOMinterface,HTMLSourceElement(en ...
Thetagisusedtoembedsoundcontentinadocument,suchasmusicorotheraudiostreams.Thetagcontainsoneormoretagswith ...
2021年6月7日—Itisanemptyelement,meaningthatithasnocontentanddoesnothaveaclosingtag.Itiscommonlyusedtoofferthesamemediacontent ...
Thetagisusedtospecifymultiplemediaresourcesformediaelements,suchas,,and.Thetagallowsyoutospecify ...