a1:=hhv(h,20); y20:=ref(a1,1); b1:=hhv(h,60); y60:=ref(b1,1); c1:=hhv(h,120); y120:=ref(c1,1); d1:=hhv(h,240); y240:=ref(d1,1); T20:if(c/y20>1,1,0); T60:if(c/y60>1,2,0); T120:if(c/y120>1,3,0); T240:if(c/y240>1,4,0); 起跳位置:10*c/llv(c,240)-10;