本文實例講述了JS實現一次性彈窗的方法。分享給大家供大家參考，具體如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title><script> function openwin() { window.open("","","width=200,height=200"); } function get_cookie(name) { var search = name+"="; var returnvalue = ""; if(document.cookie.length>0) { offset = document.cookie.indexOf(search); if(offset!=-1) { offset = search.length; end = document.cookie.indexOf(";",offset); if(end==-1) { end = document.cookie.length; } returnvalue = unescape(document.cookie.substring(offset,end)); } } return returnvalue; } function loadpopup() { if(get_cookie("popped")=='') { openwin(); document.cookie="popped=yes"; } }</script></head><body onload="loadpopup();"></body></html>希望本文所述對大家JavaScript程序設計有所幫助。
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