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23 > > > >Document> > > > > window.addEventListener("beforeunload",function (e) { var confirmationMessage = '确定离开此页吗？本页不需要刷新或后退'; (e || window.event).returnValue = confirmationMessage; // Gecko and Trident return confirmationMessage; // Gecko and WebKit }); > > 原文链接：/note/421645.html
