如何优雅处理if判断中的多个string.find()检查？

• 用in替代find简化基础判断
  原生字符串的in操作比find更直观，完全可以替代find != -1或find == -1的判断，先把最基础的条件简化：

  if a in string and b in string and c not in string and d not in string and string not in my_list:
  

• 用all()批量处理同类条件
  如果后续需要增减需要检查的包含项或排除项，把它们归类到列表中，用all()统一判断，代码扩展性更强：

  required_items = [a, b]
  excluded_items = [c, d]
  if all(item in string for item in required_items) and all(item not in string for item in excluded_items) and string not in my_list:
  

• 拆分为独立变量提升可读性
  把每个条件拆成命名清晰的布尔变量，即使条件复杂，也能一眼看懂逻辑：

  has_a = a in string
  has_b = b in string
  no_c = c not in string
  no_d = d not in string
  not_in_target_list = string not in my_list
  
  if has_a and has_b and no_c and no_d and not_in_target_list:
  

内容的提问来源于stack exchange，提问作者curies