大约有 5,400 项符合查询结果（耗时：0.0225秒） [XML]
How to convert numbers between hexadecimal and decimal
...
Hex -> decimal:
Convert.ToInt64(hexValue, 16);
Decimal -> Hex
string.format("{0:x}", decValue);
share
|
improve this answer
|
...
.htaccess: Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included i
...
Steps to start Apache httpd.exe (I am using x64 VC11 example here)
http://www.apachelounge.com/download/VC11/
Be sure that you have installed Visual C++ Redistributable for Visual Studio 2012 : VC11 vcredist_x64/86.exe
http://www.microsoft.com/en-us/download/details...
Frequency table for a single variable
...,2,3,3,3])
print(my_series.value_counts())
3 3
2 2
1 1
dtype: int64
Notice here that the item returned is a pandas.Series
In comparison, numpy.unique returns a tuple with two items, the unique values and the counts.
vals, counts = np.unique(my_series, return_counts=True)
print(vals, co...
Two-way encryption: I need to store passwords that can be retrieved
...
$salt = substr($data, 0, 128);
$enc = substr($data, 128, -64);
$mac = substr($data, -64);
list ($cipherKey, $macKey, $iv) = $this->getKeys($salt, $key);
if (!hash_equals(hash_hmac('sha512', $enc, $macKey, true), $mac)) {
return false;
...
Failed to load JavaHL Library
...put from the last command could look like this, for example:
/usr/lib/x86_64-linux-gnu/jni/libsvnjavahl-1.so
This gives you the path, so you can add the following to your eclipse.ini:
-Djava.library.path=/usr/lib/x86_64-linux-gnu/jni/
...
What is the difference between String and string in C#?
...tem.UInt16
int: System.Int32
uint: System.UInt32
long: System.Int64
ulong: System.UInt64
float: System.Single
double: System.Double
decimal: System.Decimal
char: System.Char
Apart from string and object, the aliases are all to value types. decimal is a value type, but not a primi...
How can I find the current OS in Python? [duplicate]
...9
dF.dF.
64.2k2727 gold badges123123 silver badges134134 bronze badges
...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
...calhost (127.0.0.1): 48 data bytes
56 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.096 ms
56 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.088 ms
56 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.088 ms
^C--- localhost ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
...
How do you run a crontab in Cygwin on Windows?
...nistrator". In cmd prompt:
cd <directory_where_i_forgot_the setup-x86_64.exe> cygwin installer:
set package_name=cygrunsrv cron
setup-x86_64.exe -n -q -s http://cygwin.mirror.constant.com -P %package_name%
Ensure the installer does not throw any errors in the prompt ... If it has - you p...
Eclipse returns error message “Java was started but returned exit code = 1”
... eclipse bitness.
32-bit OS , 32-bit JDK , 32-bit Eclipse (32-bit only)
64-bit OS , 32-bit JDK , 32-bit Eclipse
64-bit OS , 64-bit JDK , 64bit Eclipse (64-bit only)
Kindly use 1 of the above combinations.
share
...