Python进行区间取值案例讲解

# 根据值、比较list， 值list，返回区间值, other_value 即不在的情况
 def get_value_by_between(self, compare_value, compare_list, value_list, other_value, type="compare", left=False,
 right=True):
  try:
if compare_value is None or compare_value == '':
 return other_value
 
if len(compare_list) != len(value_list):
 raise Exception("区间对比两个list长度不一致")
 
# # 如果比较的值和其它情况值一致，说明是其它情况
# if compare_value == other_value:
#  return other_value
 
# 左边开区间
if compare_list[0] == -9999999 and compare_list[1] >= compare_value:
 return value_list[0]
 
# 右边开区间
if right is True and compare_value > compare_list[len(compare_list) - 1]:
 return value_list[len(compare_list) - 1]
# 左边开区间
# if left is True and compare_value <= compare_list[0]:
#  return compare_value[0]
 
for ind, this_val in enumerate(compare_list):
 # 如果是最后一个，则返回最后一个值
 if compare_value > compare_list[len(compare_list) - 1]:
  return value_list[len(compare_list) - 1]
 # 返回默认的
 elif (ind + 1) == len(compare_list):
  return other_value
 
 # 下一个，如果大于compare_list长度减1 ，就返回最后一个
 next_val = compare_list[ind if ind >= len(compare_list) else ind + 1]
 # 第一个的话就是 大于等于，小于下一个
 if ind == 0 and compare_value >= this_val and compare_value <= next_val:
  return value_list[ind]
 # 大于左边，小于等于右边
 elif this_val < compare_value and compare_value <= next_val:
  return value_list[ind]
  except:
log.error("根据区间计算分数异常", traceback.format_exc())
  return other_value

# 数字型
 def get_val_by_list(self, compare_value, compare_list, val_list, other_value):
  try:
if compare_value is None:
 return other_value
 
for ind, li in enumerate(compare_list):
 if len(li) == 1 and compare_value == li[0]:
  return val_list[ind]
 # 最后一个
 elif len(li) == 1 and (ind + 1) == len(compare_list) and compare_value >= li[0]:
  return val_list[ind]
 elif len(li) == 2 and compare_value >= li[0] and compare_value <= li[1]:
  return val_list[ind]
  except:
log.error(" get_val_by_list 异常", traceback.format_exc())
  return other_value

# creditTime 即值
self.get_val_by_list(creditTime, [[0],[1],[2],[3]], [20, 10, 0, -100],
  other_value=0)

self.get_value_by_between(taxCreditRating, [0, 60, 70, 80, 90],[-200, 0, 10, 20, 30], other_value=0)

self.get_value_by_between(taxAmt12m, [0,0, 1000, 15000, 50000, 200000],[-50, -50, 0, 0, 5, 10], -0)