大约有 44,000 项符合查询结果（耗时：0.1227秒） [XML]
How do I get a file's directory using the File object?
...rent() (or file.getParentFile()) to give you what you want.
Additionally, if you want to find out whether the original File does exist and is a directory, then exists() and isDirectory() are what you're after.
share
...
How to print register values in GDB?
...
I get: Invalid register `%eax' And if I just do "info registers" eax does not show up. Yet I am looking at my code assembly in the IDE where a EXC_BAD_ACCESS signal has been generated with the instruction: test %eax, %eax This is in XCode running gdb. Why i...
How to use GROUP_CONCAT in a CONCAT in MySQL
If I have a table with the following data in MySQL:
7 Answers
7
...
How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?
...
Test it for distinct, if two equal max datetime be in the same home (with different players)
– Maksym Gontar
Mar 4 '09 at 21:04
...
What is the meaning of the term “thread-safe”?
... in the context of multi-threaded programs. A piece of code is thread-safe if it functions correctly during simultaneous execution by multiple threads. In particular, it must satisfy the need for multiple threads to access the same shared data, and the need for a shared piece of data to be accessed ...
How to get the first five character of a String
...exception in case of string's length less than the characters required.
If you want to get the result back in string then you can use:
Using String Constructor and LINQ's Take
string firstFivChar = new string(yourStringVariable.Take(5).ToArray());
The plus with the approach is not checking ...
How can I solve a connection pool problem between ASP.NET and SQL Server?
...e connection. For example the following code will cause a connection leak, if the code between .Open and Close throws an exception:
var connection = new SqlConnection(connectionString);
connection.Open();
// some code
connection.Close();
The correct way would be this:
var connecti...
How does the main() method work in C?
I know there are two different signatures to write the main method -
9 Answers
9
...
How to compare UIColors?
...
Thanks. What is the difference with isEqualTo? Also, do you know how to display it in the debugger?
– 4thSpace
Jun 9 '09 at 15:19
...
Set the value of an input field
...
I will, is there a way to make the vale NULL if the user clicks on the field ?
– SebastianOpperman
Sep 30 '11 at 10:46
4
...