大约有 7,000 项符合查询结果（耗时：0.0307秒） [XML]
ReadOnlyCollection or IEnumerable for exposing member collections?
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96
More modern solution
Unless you need the internal collection to be mutable, you could use the ...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
...ening port can accept more than one connection simultaneously.
There is a '64K' limit that is often cited, but that is per client per server port, and needs clarifying.
Each TCP/IP packet has basically four fields for addressing. These are:
source_ip source_port destination_ip destination_port
< ...
Converting datetime.date to UTC timestamp in Python
...r such a simple thing.. Not pythonic at all.
– Angry 84
Nov 16 '18 at 4:18
@Mayhem: I cleaned it up a little and added...
How can I obfuscate (protect) JavaScript? [closed]
..., but also a lot of work which may be unnecessary. You could probably base64 encode some string values, and that would be easier.. but someone who really wanted those string values could easily decode them. Encryption is the only way to truly prevent anyone from accessing your data, and most peopl...
How To Test if Type is Primitive
...t 3: IsPrimitive = (Boolean, Byte, SByte, Int16, UInt16, Int32, UInt32, Int64, UInt64, IntPtr, UIntPtr, Char, Double, and Single),
Anther Primitive-Like type to check (t == typeof(DateTime))
share
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When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s
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84
Relational databases enforces ACID. So, you will have schema based transaction oriented data st...
Configure WAMP server to send email
...example in the devside guide uses forwardslashes.
sendmail_path = "C:\wamp64\msmtp\msmtp.exe -d -C C:\wamp64\msmtp\msmtprc.ini -t --read-envelope-from"
mail.log = "C:\wamp64\msmtp\maillog.txt"
Create and edit the file msmtprc.ini in the same directory as your msmtp.exe file as follows, replacing...
Selectively revert or checkout changes to a file in Git?
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84
You could use
git add -p <path>
to stage the chunks that you want to keep in a particu...
Is using Random and OrderBy a good shuffle algorithm?
... the same result.
The program then tests some values, in the range 1...4096. Looking at the result, it's quite clear that for low values (< 128), the algorithm is very biased (4-8%). With 3 values you need at least r.Next(1024). If you make the array bigger (4 or 5), then even r.Next(1024) isn'...
Convert floats to ints in Pandas?
...>> cols = ['A', 'B']
>>> df[cols] = df[cols].applymap(np.int64)
>>> print(df)
... A B C D
... 0 8 0 1.916283 6.226750
... 1 1 9 9.277504 8.522808
... 2 1 4 2.700118 7.739108
Or for a single column with apply():
>>> df['C'] = df['C']...