移动端 js new Date 根据日期获取日期问题 Invalid date 、undefined,

 $(function(){ var date="2017-10-04"; function getweek(date){ var week; if(date.getDay()==0) week="星期日" if(date.getDay()==1) week="星期一" if(date.getDay()==2) week="星期二" if(date.getDay()==3) week="星期三"

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