js 日期字符串转换成日期类型,判断星期几 var weekDay = ["星期天", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"]; var dateStr = "2008-08-08 08:08:08"; var myDate = new Date(Date.parse(dateStr.replace(/-/g, "/"))); alert(weekDay[myDate.getDay()]);