大约有 5,400 项符合查询结果（耗时：0.0338秒） [XML]
How to pause for specific amount of time? (Excel/VBA)
...
Ben SBen S
64.1k2929 gold badges162162 silver badges208208 bronze badges
...
Combine Date and Time columns using python pandas
...06 22:00:00
8 2013-03-06 23:00:00
9 2013-04-06 01:00:00
dtype: datetime64[ns]
Note: surprisingly (for me), this works fine with NaNs being converted to NaT, but it is worth worrying that the conversion (perhaps using the raise argument).
...
R: rJava package install failing
...
I am on R 2.15.3 ubuntu 12.04.2 64bit. when I update.packages() I get i notice that there is a rJava update. Installation from within R fails. When I apt-get install r-cran-rjava there is no update available. Why is this happening?
– E...
How to set or change the default Java (JDK) version on OS X?
...hing like the following:
Matching Java Virtual Machines (3):
1.8.0_05, x86_64: "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
1.6.0_65-b14-462, x86_64: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
1.6.0_65-b14-462, i386: "Java SE 6" /S...
best practice to generate random token for forgot password
...
I made a varchar(64) field in my sql database to store this token. I set $length to 64, but the string returned is 128 characters long. How can I get a string with a fixed size (here, 64 then) ?
– gordie
...
Mail multipart/alternative vs multipart/mixed
...to the file to be attached.
Returns:
An object containing a base64url encoded email object.
"""
message = MIMEMultipart('mixed')
message['to'] = to
message['from'] = sender
message['subject'] = subject
message_alternative = MIMEMultipart('alternative')
message...
Java String to SHA1
...eturn result;
}
BTW, you may get more compact representation using Base64. Apache Commons Codec API 1.4, has this nice utility to take away all the pain. refer here
share
|
improve this answer
...
Using vagrant to run virtual machines with desktop environment
... to install the virtualbox guest package (yum install VirtualBox-guest.x86_64). Without that package, xorg couldn't get access to my host machine monitor for some reason. So... Thanks man!
– billmalarky
Jun 14 '14 at 6:36
...
What is the most appropriate way to store user settings in Android application
...Secure.ANDROID_ID).getBytes(UTF8), 20));
return new String(Base64.encode(pbeCipher.doFinal(bytes), Base64.NO_WRAP),UTF8);
} catch( Exception e ) {
throw new RuntimeException(e);
}
}
protected String decrypt(String value){
try {
f...
Referencing system.management.automation.dll in Visual Studio
...
I've installed the SDK on 2 different 64-bit machines (with difficulty) and found the version 6.2.8229.0, 4.66MB dll on only 1, and only in c:\program files (x86)\reference assemblies\microsoft\windowspowershell\v1.0. I highly recommend editing the .csproj file,...