老师好: DRAWTEXT((DIF拐头价<柱变向价)&&NOT(CROSSDOWN(DIF拐头价,柱变向价)),支撑,'↑'),VALIGN0,COLORRED,FONTSIZE20; DRAWTEXT((DIF拐头价>=柱变向价)&&NOT(CROSS(DIF拐头价,柱变向价)),阻力,’↓’),VALIGN2,FONTSIZE20,COLORGREEN; 各自只显示最后一次的文字图标? (来源:文华财经)