python - 如何在文本字符串中查找电话号码

Question

这是我目前所拥有的:

import re
text = "If you want to call me, my old number was 905-343-2112 and it has 
been changed to 289-544-2345"
phone = re.findall(r'((\d{3})-(\d{3})-(\d{4}))', text)
for call in phone:
    print (call[0])

我猜我用于查找电话号码的正则表达式不是很好，因为如果我在打印调用时去掉方括号，它似乎会给我完整的号码，然后它会分解每组号码。我该如何润色这段代码

Answer 1

对电话号码段使用非捕获组:

phone = re.findall(r'((?:\d{3})-(?:\d{3})-(?:\d{4}))', text)
                       ^^        ^^        ^^

或者更好的是，去掉括号

phone = re.findall(r'\d{3}-\d{3}-\d{4}', text)