token =（\d +）应该可以解决问题

也可以满足aplhas的需要要么执行以下操作：

To cater for aplhas as well you can do either:

token =（[[a-zA-Z0-9 + / =] +）即可匹配您期望的字符。这将匹配令牌=，然后捕获与字符类匹配的所有以下字符，即az，AZ，0-9，+，/和=。

token=([a-zA-Z0-9+/=]+) to explicitly match on the characters you expect. This matches "token=" and then captures all following characters that match the character class, that is, a-z, A-Z, 0-9, +, / and =.

或

token =（[[^&＃] +）以匹配除您知道的字符以外的任何字符可以完成令牌。这匹配 token =，然后捕获所有字符，直到第一个& ，＃或字符串的末尾

token=([^&#]+) to match any character except for the ones you know can finish the token. This matches "token=" and then captures all characters until the first &, # or the end of the string.