大约有 2,317 项符合查询结果（耗时：0.0134秒） [XML]
How do you detect where two line segments intersect? [closed]
...− vy wx.
Suppose the two line segments run from p to p + r and from q to q + s. Then any point on the first line is representable as p + t r (for a scalar parameter t) and any point on the second line as q + u s (for a scalar parameter u).
The two lines intersect if we can find ...
How to exit git log or git diff [duplicate]
...e in the less program, which makes the output of git log scrollable.
Type q to exit this screen. Type h to get help.
If you don't want to read the output in a pager and want it to be just printed to the terminal define the environment variable GIT_PAGER to cat or set core.pager to cat (execute git...
How do you do block comments in YAML?
... arise in practice: JSON allows extended charactersets like UTF-32, YAML requires a space after separators like comma, equals, and colon while JSON does not, and some non-standard implementations of JSON extend the grammar to include Javascript's /* ... */ comments. Handling such edge cases may requ...
Batch file. Delete all files and folders in a directory
...to bypass "Are you sure you want to delete..." prompt youll need to add /F Q flags: del . /F /Q
– Rhyuk
Apr 22 '13 at 20:41
41
...
How does Angular $q.when work?
Can some one explain me how does $q.when work in AngularJS?
I'm trying to analyse how $http work and found this:
1 Answ...
How to perform OR condition in django queryset?
I want to write a Django query equivalent to this SQL query:
4 Answers
4
...
Break promise chain and call a function based on the step in the chain where it is broken (rejected)
...there is one with such a handler.
This means the following two lines are equivalent:
stepOne().then(stepTwo, handleErrorOne)
stepOne().then(null, handleErrorOne).then(stepTwo)
But the following line is not equivalent to the two above:
stepOne().then(stepTwo).then(null, handleErrorOne)
Angular...
How to delete files/subfolders in a specific directory at the command prompt in Windows
...shell script to clean up the folder and files within C:\Temp source:
del /q "C:\Temp\*"
FOR /D %%p IN ("C:\Temp\*.*") DO rmdir "%%p" /s /q
Create a batch file (say, delete.bat) containing the above command. Go to the location where the delete.bat file is located and then run the command: delete.b...
what is the difference between ?:, ?! and ?= in regex?
...
The difference between ?= and ?! is that the former requires the given expression to match and the latter requires it to not match. For example a(?=b) will match the "a" in "ab", but not the "a" in "ac". Whereas a(?!b) will match the "a" in "ac", but not the "a" in "ab".
The di...
How do I clear the std::queue efficiently?
I am using std::queue for implementing JobQueue class. ( Basically this class process each job in FIFO manner).
In one scenario, I want to clear the queue in one shot( delete all jobs from the queue).
I don't see any clear method available in std::queue class.
...