美股三大股指小幅低开，纳指跌0.53%

array(1) { [478780]=> array(2) { [2]=> array(3) { [0]=> string(12) "外围股指" [1]=> string(18) "纳斯达克指数" [2]=> string(6) "低开" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }