注册校验不通过的时候，要回退到前一个页面,但是值就没了。 用IE支持的css , behavior来解决问题 saveHistory不支持password类型的input <HTML> <HEAD> <META NAME="save" CONTENT="history"> <STYLE> .saveHistory {behavior:url(#default#savehistory);} .download {behavior:url(#default#download);} </STYLE> </HEAD> <BODY> <INPUT class=saveHistory type=text id=oPersistInput> <a href="Noname1.php" class="download" target="_self">download</a> </BODY> </HTML> Default Behaviors Reference Behaviors anchorClick Enables the browser to navigate to a folder view. anim Defines an instance of the Microsoft DirectAnimation viewer in an HTML document to render DirectAnimation objects and play DirectAnimation sounds. clientCaps Provides information about features supported by Internet Explorer, as well as a way for installing browser components on demand. download Downloads a file and notifies a specified callback function when the download is complete. homePage Contains information about a user's homepage. httpFolder Contains scripting features that enable browser navigation to a folder view. mediaBar Provides a basic user interface (UI) for locating and playing media within the browser window. The Media Bar saveFavorite Enables the object to persist data in a favorite Web site. saveHistory Enables the object to persist data in the browser history. saveSnapshot Enables the object to persist data when a Web page is saved. userData Enables the object to persist data in user data. 相关文章： 2021-07-24 2021-07-02 2022-12-23 2021-06-24 2022-12-23 2022-12-23 2022-12-23 2022-12-23