input: Write a function to check if a given string contains any numbers. If the string contains a number, return True; otherwise, return False. If the string is empty, return False.
  def string_contains_number(string):
      pattern = re.compile("[0-9]") 
      return pattern.search(string) != None
  
  assert string_contains_number("Hello123")==True
  assert string_contains_number("Hello")==False
  assert string_contains_number("")==False
  assert string_contains_number("123")==True
  assert string_contains_number("abc123def")==True
output: def string_contains_number(string):
      pattern = re.compile("[0-9]") 
      return pattern.search(string) != None