大约有 47,000 项符合查询结果(耗时:0.0561秒) [XML]
Programmer-friendly search engine? [closed]
...gle is unfriendly to searching for verbatim strings with characters like $ and #. Is there a search engine that supports searching for verbatim strings?
...
How to define two fields “unique” as couple
...ax_length=50)
class Meta:
unique_together = ('field1', 'field2',)
And in your case:
class Volume(models.Model):
id = models.AutoField(primary_key=True)
journal_id = models.ForeignKey(Journals, db_column='jid', null=True, verbose_name = "Journal")
volume_number = models.CharField('Vol...
How to apply shell command to each line of a command output?
Suppose I have some output from a command (such as ls -1 ):
8 Answers
8
...
How can I tell Moq to return a Task?
...k(). You can simply return a Task with the desired values using .Returns() and Task.FromResult, e.g.:
MyType someValue=...;
mock.Setup(arg=>arg.DoSomethingAsync())
.Returns(Task.FromResult(someValue));
Update 2014-06-22
Moq 4.2 has two new extension methods to assist with this.
m...
Deleting a file in VBA
...; "")
End Function
I'll leave it to you to figure out the various error handling needed but these are among the error handling things I'd be considering:
Check for an empty string being passed.
Check for a string containing characters illegal in a file name/path
2.) How To Delete a File. Look...
How to un-escape a backslash-escaped string?
...on literal structures: strings, numbers, tuples, lists,
dicts, booleans, and None. (END)
Like this:
>>> import ast
>>> escaped_str = '"Hello,\\nworld!"'
>>> print ast.literal_eval(escaped_str)
Hello,
world!
...
Create a GUID in Java
...
Have a look at the UUID class bundled with Java 5 and later.
For example:
If you want a random UUID you can use the randomUUID method.
If you want a UUID initialized to a specific value you can use the UUID constructor or the fromString method.
...
PowerShell script not accepting $ (dollar) sign
I am trying to open an SQL data connection using a PowerShell script and my password contains a $ sign:
1 Answer
...
C++ lambda with captures as a function pointer
I was playing with C++ lambdas and their implicit conversion to function pointers. My starting example was using them as callback for the ftw function. This works as expected.
...
How to Resize a Bitmap in Android?
...
suppose you have large resolution image say 1200x1200 and when you display this, it will be full in the imageview. If i scale it down say 75% and the screen is so that it displays scaled image also fully in imageview, what should be done for such screens?
–...
