我不能修復這個錯誤: Unable to Determine Parse Mode!
The validator can process documents either as XML (for document types such as XHTML, SVG, etc.) or SGML (for HTML 4.01 and prior versions). For this docume
請檢查js小提琴 - http://jsfiddle.net/7f304y52/ 雖然正確的文檔類型被放置,但爲什麼框架集不工作?你能解釋一下在頁面崩潰或元素被丟棄 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd">
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