BroswerMode/DocumentMode/CompatMode/ 浏览器模式，文档模式，渲染模式

来源：互联网发布：辐射4室内优化mod 编辑：程序博客网时间：2024/06/05 15:13

Reference:http://my.oschina.net/junn/blog/125982

http://blog.csdn.net/jcx5083761/article/details/8284552

BorswerMode and DocumentMode are special,which used in IE(the documentmode is added from ie8).the value of the formar include 5,7,8,9,10 correspond respectively to IE7,8,9,10. the documentmode value of IE6 is undefined. When you change the borswermode , the documentMode will change accordingly. because the borswermodes have default documentmode values .in addition, the useragent string sended to server will be changed.Conversely , the change of documentmode will not change the useragent string or borswermode,it just tell the trident (ie rendering engine) how to render and parse the page code,the page will refresh when you change it.
"<meta http-equiv="x-ua-compatible" content="IE=7" />" ,it tells the trident rending the page in documentmode ie7. the difference between "content="IE=7"" and IE=EmulateIE7 ,is that the latter is rendering the page in compatible mode which takes account of the doctype statement.
CompatMode values includes CSS1Compat and BackCompat,which every browser implemented.The CSS1Compat means the CSS rendering mode is standar mode,the backcompt indicates the doctype is quirks mode.The compatMode will influence the boxing mode .

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