input: Write a function to check if a given string contains any numbers. If it does, return True; otherwise, return False.
  def string_contains_number(string):
      pattern = re.compile("[0-9]") 
      return pattern.search(string) != None
      
  assert string_contains_number("abc123")==True
  assert string_contains_number("hello world")==False
  assert string_contains_number("1")==True
  assert string_contains_number("Python3.8")==True
  assert string_contains_number("NoNumbersHere")==False
output: def string_contains_number(string):
      pattern = re.compile("[0-9]") 
      return pattern.search(string) != None