大约有 32,000 项符合查询结果（耗时：0.0583秒） [XML]
Get string character by index - Java
...o = text.charAt(0);
System.out.println(charAtZero); // Prints f
For more information, see the Java documentation on String.charAt. If you want another simple tutorial, this one or this one.
If you don't want the result as a char data type, but rather as a string, you would use the Character.toStr...
Git Bash is extremely slow on Windows 7 x64
...
Do you have Git information showing in your Bash prompt? If so, maybe you're inadvertently doing way too much work on every command. To test this theory try the following temporary change in Bash:
export PS1='$'
...
How to update only one field using Entity Framework?
...class Thing
{
[Key]
public int Id { get; set; }
public string Info { get; set; }
public string OtherStuff { get; set; }
}
dbcontext:
public class MyDataContext : DbContext
{
public DbSet<Thing > Things { get; set; }
}
accessor code:
MyDataContext ctx = new MyDataCont...
Understanding the Rails Authenticity Token
...me fields as the bank's "Transfer Funds" form.
Attacker knows your account info, and has pre-filled form fields to transfer money from your account to attacker's account.
Attacker's page includes Javascript that submits form to your bank.
When form gets submitted, browser includes your cookies for t...
Display date/time in user's locale format and time offset
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@VG I added some more info about where does the 60k comes from. Hope this help.
– Jeremy Chone
May 9 '17 at 15:23
add a co...
Using IPython notebooks under version control
...ltering for a specific git repository, simply create inside it a file .git/info/attributes, with
**.ipynb filter=
as content. Clearly, in the same way it is possible to do the opposite: enable the filtering only for a specific repository.
the code is now maintained in its own git repo
if the...
Dynamically select data frame columns using $ and a character value
...lly build the code with strings instead of hard-coding. See here for more info: cran.r-project.org/web/packages/lazyeval/vignettes/…
– manotheshark
Jul 3 '17 at 15:46
add ...
How do you configure logging in Hibernate 4 to use SLF4J
...>
<logger name="org.hibernate" level="debug"/>
<root level="info">
<appender-ref ref="console"/>
</root>
</configuration>
<!-- end: logback.xml -->
Some components may want to have access to logback.xml at JVM start-up time for proper logging, for ins...
MyISAM versus InnoDB [closed]
...ad and one write. The reads can be dirty (e.g. I don't need 100% accurate information at the time of read).
The task in question will be doing over 1 million database transactions an hour.
...
Log all queries in mysql
... a log('version') and it will keep record of the queries affecting it with information about time and the whole query.
– gadget00
Aug 7 '13 at 14:57
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