美股高开低走，纳指率先转跌

array(1) { [447778]=> array(2) { [2]=> array(3) { [0]=> string(12) "高开低走" [1]=> string(12) "外围股指" [2]=> string(18) "纳斯达克指数" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }