lethtml="12demo測試";
constreg=/<[^<>]+>/g;
letret=html.replace(reg,"");
console.log(ret);//12demo測試
                            

letstr='這是內(nèi)容'
letregex=/(.*?)<\/html>/ig;
letresult;
while((result=regex.exec(str))!=null)
alert(result[1]);