上期所沪锡期货主力合约大跌4%

array(1) { [391121]=> array(2) { [2]=> array(4) { [0]=> string(12) "商品期货" [1]=> string(9) "上期所" [2]=> string(12) "主力合约" [3]=> string(9) "锡期货" } [4]=> array(1) { [0]=> string(19) "同花顺7x24快讯" } } }