python 通过列表元素值截取列表并获取长度

 

def count_range_in_list(li, min, max):  
    ctr = 0  
    for x in li:  
        if min <= x <= max:  
            ctr += 1  
    return ctr  
  
list1 = [10,20,30,40,40,40,70,80,99]  
print(count_range_in_list(list1, 40, 100))  
  
list2 = ['a','b','c','d','e','f']  
print(count_range_in_list(list2, 'a', 'e'))