Python程序仅从具有某些特定数字的列表中提取数字

给定元素列表，提取具有特定数字的数字。

Input : test_list = [3456, 23, 128, 235, 982], dig_list = [2, 3, 5, 4] 
Output : [23, 235] 
Explanation : 2, 3 and 2, 3, 5 are in digit list, hence extracted elements.
Input : test_list = [3456, 23, 28, 235, 982], dig_list = [2, 3, 5, 4, 8] 
Output : [23, 28, 235] 
Explanation : 2, 3; 2, 8 and 2, 3, 5 are in digit list, hence extracted elements. 

方法 #1：使用列表理解+ all()

在这里，我们根据目标列表中的元素检查数字中的每个元素是否存在，如果在列表中找到所有元素，则返回元素。

Python3

# Python3 code to demonstrate working of 
# Elements with specific digits
# Using list comprehension + all()
  
# initializing list
test_list = [345, 23, 128, 235, 982]
  
# printing original list
print("The original list is : " + str(test_list))
  
# initializing digit list 
dig_list = [2, 3, 5, 4]
  
# checking for all digits using all()
res = [sub for sub in test_list if all(int(ele) in dig_list for ele in str(sub))]
  
# printing result 
print("Extracted elements : " + str(res))

输出：

The original list is : [345, 23, 128, 235, 982]
Extracted elements : [345, 23, 235]

方法 #2：使用filter() + lambda + all()

在这种情况下，元素过滤是使用 filter() + lambda 完成的，all() 用于检查其他列表中的所有数字。

蟒蛇3

# Python3 code to demonstrate working of 
# Elements with specific digits
# Using filter() + lambda + all()
  
# initializing list
test_list = [345, 23, 128, 235, 982]
  
# printing original list
print("The original list is : " + str(test_list))
  
# initializing digit list 
dig_list = [2, 3, 5, 4]
  
# filter() used to filter from logic 
res = list(filter(lambda sub : all(int(ele) in dig_list for ele in str(sub)), test_list))
  
# printing result 
print("Extracted elements : " + str(res))

输出：

The original list is : [345, 23, 128, 235, 982]
Extracted elements : [345, 23, 235]