铁矿石主力合约日内大跌4%

array(1) { [421923]=> array(2) { [2]=> array(4) { [0]=> string(9) "铁矿石" [1]=> string(12) "商品期货" [2]=> string(12) "主力合约" [3]=> string(15) "铁矿石期货" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }