document.writeln('期市早盘收盘棉花涨0.30% 棉纱涨0.25% 短纤跌1.49%');document.writeln('5月20日华东PTA现货价格重心下滑');document.writeln('PTA主力合约跌超1% 短纤主力合约跌近1%');document.writeln('期市夜盘收盘棉纱涨0.53% 棉花涨0.22% 短纤跌0.88%');