python - 从字符串更改 int 和 string

Question

format_address 函数将地址字符串的一部分分离为新字符串:house_number 和 street_name，并返回:“名为 Y 的街道上的房屋编号 X”。输入字符串的格式为:数字门牌号，后跟街道名称，其中可能包含数字，但不能单独包含数字，并且可能有几个字长。例如，“123 Main Street”、“1001 1st Ave”或“55 North Centre Drive”。填补空白以完成此功能。

def format_address(address_string):
  # Declare variables
  house_number=' '
  street_name=" "

  # Separate the address string into parts
  x=address_string.split(" ")
  # Traverse through the address parts
  for y in x:
    if(y.isdigit()):
      house_number=y
    else:
      street_name+=y
      street_name+=' '
    # Determine if the address part is the
    # house number or part of the street name
 # Does anything else need to be done 
  # before returning the result?

  # Return the formatted string  
    return "house number {} on street named {}".format(house_number,street_name)

print(format_address("123 Main Street"))
# Should print: "house number 123 on street named Main Street"

但它显示输出为:

house number 123 on street named  
house number 1001 on street named  
house number 55 on street named  

Answer 1

当您使用 str.split() ，您可以选择要将字符串拆分为多少段(只要不超过最大值)。在您的情况下，字符串应该只拆分一次，以将门牌号与街道名称分开。此外，您可以格式化字符串:

def format_address(address_string):
    num, st = address_string.split(' ',1)
    return f"house number {num} on street named {st}"

print(format_address("123 Main Street"))

输出:

house number 123 on street named Main Street