document.writeln('期市早盘收盘短纤涨0.31% 棉花跌1.71% 棉纱跌1.27%');document.writeln('7月30日华东PTA现货表现坚挺');document.writeln('期市夜盘收盘短纤涨0.46% 棉花跌1.07% 棉纱跌0.97%');document.writeln('中原期货：PTA向上驱动力不足');