大约有 47,000 项符合查询结果(耗时:0.0712秒) [XML]
Android: Vertical ViewPager [closed]
...
@Brett I was using your solution. but now I am getting the swipping issue in andorid pie devices. Has any one facing same issue?
– Jishant
Jan 3 '19 at 10:38
...
When is SQLiteOpenHelper onCreate() / onUpgrade() run?
... but the version is lower than the current version which you have passed.
Now say you are planing to give a third version of application with db version as 3 (db version is increased only when database schema is to be modified). In such incremental upgrades, you have to write the upgrade logic from...
Why is there a difference in checking null against a value in VB.NET and C#?
... the VB.NET semantics, which in essence gives NULL the semantics "I don't know yet". Then the comparison of 5 to "I don't know yet". is naturally "I don't know yet"; ie NULL. This has the additional advantage of mirroring the behaviour of NULL in (most if not all) SQL databases. This is also a more ...
Error message “Forbidden You don't have permission to access / on this server” [closed]
...grp -R apache /username/ fixed the problem for me! but just like Edifice, now I can't access my home directory tree unless I chgrp back to my user. So now I need to change to my original user to pull in my changes via git. Then change back to apache to redeploy my server. Is this the only way?
...
What is Express.js?
...
Express.js is a Node.js framework. It's the most popular framework as of now (the most starred on NPM).
.
It's built around configuration and granular simplicity of Connect middleware. Some people compare Express.js to Ruby Sinatra vs. the bulky and opinionated Ruby on Rails.
2) What is the...
Should I call Close() or Dispose() for stream objects?
...of these classes. They've also defined a public method called Close() . Now that confuses me, as to what should I call once I'm done with objects? What if I call both?
...
Learning Regular Expressions [closed]
... to what you might think of as cautious, add an extra ? to the quantifier. Now you understand how \((.+?)\), the example from your question works. It matches the sequence of a literal left-parenthesis, followed by one or more characters, and terminated by a right-parenthesis.
If your input is '(123...
Has anyone ever got a remote JMX JConsole to work?
It seems that I've never got this to work in the past. Currently, I KNOW it doesn't work.
20 Answers
...
Why are floating point numbers inaccurate?
...ly in decimal; for more detail, see: 675539944105574 / 4503599627370496.)
Now that we've transformed the third component into a fractional number, adding 1 gives the true mantissa.
Recapping the Components
Sign (first component): 0 for positive, 1 for negative
Exponent (middle component): Subtra...
Does Python have “private” variables in classes?
... self.__var = 123
def printVar(self):
print self.__var
Now, if you try to access __var outside the class definition, it will fail:
>>>x = A()
>>>x.__var # this will return error: "A has no attribute __var"
>>>x.printVar() # this gives back 123
Bu...