只需一步,快速开始
编写条件:
编写方法:
tj1:=h/l<1.05; tj2:=c/ref(c,1)<1.03 and c/ref(c,1)>1; tj3:=c/ref(c,1)>0.98 and c/ref(c,1)<1; xg1:=tj1*(tj2+tj3); every(xg1,N);
举报