大约有 47,000 项符合查询结果(耗时:0.0567秒) [XML]

https://stackoverflow.com/ques... 

How to change Git log date formats

... (either committer’s or author’s). There is no built-in way that I know of to create a custom format, but you can do some shell magic. timestamp=`git log -n1 --format="%at"` my_date=`perl -e "print scalar localtime ($timestamp)"` git log -n1 --pretty=format:"Blah-blah $my_date" The first s...
https://stackoverflow.com/ques... 

Direct casting vs 'as' operator?

...n explicitly defined, e.g.: int? i; string s = "5"; i = s as int; // i is now 5 s = null; i = s as int; // i is now null – Anheledir Sep 25 '08 at 10:41 3 ...
https://stackoverflow.com/ques... 

Deleting queues in RabbitMQ

I have a few queues running with RabbitMQ. A few of them are of no use now, how can I delete them? Unfortunately I had not set the auto_delete option. ...
https://stackoverflow.com/ques... 

IOCTL Linux device driver [closed]

...IN_MAGIC 'P' #define NUM 0 #define PAUSE_PRIN __IO(PRIN_MAGIC, NUM) and now use ioctl as ret_val = ioctl(fd, PAUSE_PRIN); The corresponding system call in the driver module will receive the code and pause the printer. __IOW(MAGIC, SEQ_NO, TYPE) MAGIC and SEQ_NO are the same as above, and TYP...
https://stackoverflow.com/ques... 

How to work around the lack of transactions in MongoDB?

I know there are similar questions here but they are either telling me to switch back to regular RDBMS systems if I need transactions or use atomic operations or two-phase commit . The second solution seems the best choice. The third I don't wish to follow because it seems that many things coul...
https://stackoverflow.com/ques... 

Batch files - number of command line arguments

...pped in square brackets to empty square brackets (which is the only way I know of testing program or subprogram arguments which may contain quotes and was an overlooked leftover from trial-and-error phase) but was since fixed to how it is now. ...
https://stackoverflow.com/ques... 

Detect If Browser Tab Has Focus

...le only one can have focus. Use whichever technique suits your needs, but know the difference. – jaredjacobs Sep 19 '18 at 16:47 1 ...
https://stackoverflow.com/ques... 

Method call if not null in C#

...void SafeInvoke(this Action action) { if(action != null) action(); } now this is valid: Action act = null; act.SafeInvoke(); // does nothing act = delegate {Console.WriteLine("hi");} act.SafeInvoke(); // writes "hi" In the case of events, this has the advantage of also removing the race-con...
https://stackoverflow.com/ques... 

Color different parts of a RichTextBox string

...ew Font("Courier New", 10) }; box.AppendText("[" + DateTime.Now.ToShortTimeString() + "]", Color.Red); box.AppendText(" "); box.AppendText(userid, Color.Green); box.AppendText(": "); box.AppendText(message, Color.Blue); box.AppendText(Environment.NewLine); new Form {Controls = {box}}...
https://stackoverflow.com/ques... 

Remove xticks in a matplotlib plot?

... @GuilhermeSalomé this now raises a warning, "Passing the minor parameter of set_xticks() positionally is deprecated since Matplotlib 3.2; the parameter will become keyword-only two minor releases later." What's the correct solution now? ...