大约有 30,000 项符合查询结果（耗时：0.0331秒） [XML]
How to check for a valid Base64 encoded string
...
Its length needs to be a multiple of 3, at the time of encoding, for successful encoding! Sorry about that... and yeah, you're right... The encoded string has a length which is a multiple of 4. Thats why we'd pad upto 3 '=' .
– Anirudh Ramanathan
...
“Least Astonishment” and the Mutable Default Argument
... To anyone reading the above answer, I strongly recommend you take the time to read through the linked Effbot article. As well as all the other useful info, the part on how this language feature can be used for result caching/memoisation is very handy to know!
– Cam Jackson...
How to get overall CPU usage (e.g. 57%) on Linux [closed]
...
Every time I run this command, I get the exact same output (32.7%).
– alanaktion
Jul 18 '13 at 1:58
13
...
Understanding how recursive functions work
...n is stemming from thinking of it as "the same function" being called many times. If you think of it as "many copies of the same function being called", then it may be clearer:
Only one copy of the function ever returns 0, and it's not the first one (it's the last one). So the result of calling the...
Android: install .apk programmatically [duplicate]
...uto-update is working. Thanks for help. =)
Edit 20.7.2016:
After a long time, I had to use this way of updating again in another project. I encountered a number of problems with old solution. A lot of things have changed in that time, so I had to do this with a different approach. Here is the cod...
How do I rename an open file in Emacs?
...e any open buffers, and unlike mv it will not change the access and modify times on the file in the filesystem.
share
|
improve this answer
|
follow
|
...
Start ssh-agent on login
... can manually start the ssh-agent on my server but I have to do this every time I login via SSH.
12 Answers
...
Regular expression to match a line that doesn't contain a word
... do that only once, so it is wrapped in a group, and repeated zero or more times: ((?!hede).)*. Finally, the start- and end-of-input are anchored to make sure the entire input is consumed: ^((?!hede).)*$
As you can see, the input "ABhedeCD" will fail because on e3, the regex (?!hede) fails (there i...
Python strptime() and timezones?
...CSV dumpfile from a Blackberry IPD backup, created using IPDDump.
The date/time strings in here look something like this
(where EST is an Australian time-zone):
...
Why does this code using random strings print “hello world”?
...tructed with the same seed will generate the same pattern of numbers every time.
share
|
improve this answer
|
follow
|
...