单项选择题
A.optimum 值与value值在同一个区间内时会显示为绿色B.optimum 值所在区间和value值所在区间紧挨在一起时显示为绿色C.optimum 值所在区间和value值所在区间紧挨在一起时显示为红色D.optimum 值所在区间和value值所在区间间隔一个区间时显示为黄色
A.elif fenmu !=0:B.elif fenmu in 0:C.elif fenmu =0:D.elif fenmu ==0:
A.if fenzi is None and fenmu is None:B.if fenzi =None or fenmu =None:C.if fenzi is None or fenmu is None:D.if fenzi =None and fenmu =None: