If the application environment can be given, it may be helpful to get a satisfactory answer.
2.(\d+\。 \d+\。 \d+\。 \d+:\d+)
This expression matches 61.155.220.243: 80.
Note that if you want to match the form of IP+ port, then this is not a good expression, because it is not only lengthy, but also matches the following expression, which is illegal.
6666666666666 1. 15555555555.220000000000.2433333333:80
3. To match 61.180.154.211.80, just turn: into a space in the above expression.
4.(\d+\。 \d+\。 \d+\。 \ d+)& lt； /TD & gt； . *? & lttd。 *? & gt([0-9]{2,6})
\d+\。 \d+\。 \d+\。 \d+
Matches four comma-separated sequences of numbers.
. *? & lt
Matches a line-by-line newline sum consisting of characters other than: by except.
[0-9]{2,6}
A decimal number that matches 2-6 digits, and the number also contains leading zeros.
If two tabs are merged (1: \ 2), the tabs may not be closed normally.