大约有 47,000 项符合查询结果（耗时：0.0776秒） [XML]
how can you easily check if access is denied for a file in .NET?
...heck unless I have to. Is there a file access property I can check before hand?
6 Answers
...
String to LocalDate
... Also submitted an edit for the format "yyyy-MMM-dd". YYYY is year of era, and (more egregiously) DD is day of year.
– Spencer Kormos
Jan 5 '12 at 16:55
...
grep a tab in UNIX
... That's very good for GNU UNIX, but what about POSIX Solaris, AIX and HP-UX? Those don't know anything about -P option.
– rook
Aug 5 '13 at 15:17
22
...
SQL Server : Columns to Rows
...icatorname, indicatorvalue);
Finally, if you have 150 columns to unpivot and you don't want to hard-code the entire query, then you could generate the sql statement using dynamic SQL:
DECLARE @colsUnpivot AS NVARCHAR(MAX),
@query AS NVARCHAR(MAX)
select @colsUnpivot
= stuff((select ','+qu...
Can't compile project when I'm using Lombok under IntelliJ IDEA
...r enabling, run Build -> Rebuild Project to have annotations recognized and eliminate errors.
For IDEA 2019.2.1, depending on how the project is configured, installing the Project Lombok plugin may not be sufficient. Here is another way to use Project Lombok with IntelliJ IDEA:
Visit https:/...
Google Developer Tools “Network” Tab clears after redirect
Google Developer Tools "Network" Tab clears after redirect to another page and i want to know if there is any way to keep all request?
...
How can I make Vim's `J` and `gq` commands use one space after a period?
When I use Vim's J command, most lines are joined with a single space for padding. But after a period Vim always uses two spaces. Take the following example:
...
remove legend title in ggplot
... all legend titles. For more local control, the guide = guide_legend() command works. To remove the fill legend title, but to keep the color legend title, e.g. scale_fill_brewer(palette = "Dark2", guide = guide_legend(title = NULL)) + scale_color_manual(values = c("blue", "white", "red"))
...
Passing base64 encoded strings in URL
...would need to url-encode it, since base64 strings can contain the "+", "=" and "/" characters which could alter the meaning of your data - look like a sub-folder.
Valid base64 characters are below.
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=
...
What is the difference between git clone and checkout?
What is the difference between git clone and git checkout ?
5 Answers
5
...