一硝:(HHV(HIGH,9)+LLV(LOW,9))/2,colorred; 二黄:(HHV(HIGH,26)+LLV(LOW,26))/2,coloryellow; 硝酸钾:=ma(c,3); 硫磺:=ma(硝酸钾,5); 木炭:=ma(硝酸钾,60); 三木炭:=3*木炭-2*硫磺; aa:=cross(二黄,三木炭); bb:=cross(一硝,二黄); DRAWTEXT(bb,二黄,'火'),colorred; DRAWTEXT(aa,二黄,'**'),colorwhite;
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