document.writeln('PTA主力合约大涨4%');document.writeln('6月18日华东PTA现货价格重心走强');document.writeln('油价强势反弹聚酯原料跟涨');document.writeln('期市夜盘收盘短纤涨2.84% 棉纱涨0.46% 棉花涨0.44%');