IE6/7 :
IE8 :
IE9 :
Firefox/Safari/Chrome/Opera中正常。Ext.DomHelper中使用div，把table添加到div中间接实现。
MSDN 写道
The property is read/write for all objects except the following, for which it is read-only: COL, COLGROUP, FRAMESET, HEAD, HTML, STYLE, TABLE, TBODY, TFOOT, THEAD, TITLE, TR. The property has no default value.
DHTML expressions can be used in place of the preceding value(s). As of Internet Explorer 8, expressions are not supported in IE8 mode. For more information, see About Dynamic Properties.
但不抛异常。
相关：
http://msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx
https://developer.mozilla.org/en/dom:element.innerhtml
http://www.w3.org/TR/html5/apis-in-html-documents.html#dom-innerhtml