大约有 16,380 项符合查询结果（耗时：0.0289秒） [XML]
Add column to SQL Server
I need to add a column to my SQL Server table. Is it possible to do so without losing the data, I already have?
5 Answers...
Converting String array to java.util.List
..."two", "three"});
This is a list view of the array, the list is partly unmodifiable, you can't add or delete elements. But the time complexity is O(1).
If you want a modifiable a List:
List<String> strings =
new ArrayList<String>(Arrays.asList(new String[]{"one", "two", "three"...
Does Ruby regular expression have a not match operator like “!~” in Perl?
I just want to know whether ruby regex has a not match operator just like !~ in perl. I feel it's inconvenient to use (?!xxx) or (?<!xxxx) because you cannot use regex patterns in the xxx part.
...
presentModalViewController:Animated is deprecated in ios6
I am using the following code for an image picker. But when I run it in the simulator, I have a memory leak and I get a warning about presentModalViewcontroller:animated being deprecated in iOS6. I also get dismissModalViewController:animated deprecated. I'm using the SDK 6.1.
...
Understand homebrew and keg-only dependencies
I've recently started using homebrew, and I'm a bit confused as to what happens when I brew something onto my system, but its brewed dependencies are keg-only, meaning that they are linked under /usr/local .
...
BindingFlags.IgnoreCase not working for Type.GetProperty()?
Imagine the following
3 Answers
3
...
connecting to MySQL from the command line
How can you connect to MySQL from the command line in a Mac? (i.e. show me the code)
6 Answers
...
Convert UNIX epoch to Date object
I'm plotting and performing calculations on uniformly distributed time series. The timestamps are currently stored as integers representing the number of seconds since the UNIX epoch (e.g. 1352068320 ), but Date objects seem more appropriate for plotting. How can I do the conversion?
...
Turn Pandas Multi-Index into column
I have a dataframe with 2 index levels:
3 Answers
3
...
Why are C# interface methods not declared abstract or virtual?
C# methods in interfaces are declared without using the virtual keyword, and overridden in the derived class without using the override keyword.
...