js操作cookies

function setCookie(name,value) { var Days = 30; var exp = new Date(); //new Date(“December 31, 9998”); exp.setTime(exp.getTime() + Days*24*60*60*1000); document.cookie = name + “=”+ escape (value) + “;expires=” + exp.toGMTString(); } function getCookie(name) { var arr,reg=new RegExp(“(^| )”+name+”=([^;]*)(;|$)”); if(arr=document.cookie.match(reg)) return unescape(arr[2]); else return null; } function delCookie(name) { var exp = new Date(); exp.setTime(exp.getTime() – 1); var cval=getCookie(name); if(cval!=null) document.cookie= name + “=”+cval+”;expires=”+exp.toGMTString(); }

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