大约有 42,000 项符合查询结果(耗时:0.0468秒) [XML]
What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
...
1
2
3
4
5
Next
232
votes
...
How do I delete a Git branch with TortoiseGit
...
3 Answers
3
Active
...
Why is a round-trip conversion via a string not safe for a double?
...
3 Answers
3
Active
...
error: Libtool library used but 'LIBTOOL' is undefined
...
143
A good answer for me was to install libtool:
sudo apt-get install libtool
...
Realistic usage of the C99 'restrict' keyword?
...
|
edited May 31 '18 at 10:23
Neuron
3,54333 gold badges2323 silver badges4040 bronze badges
...
How do I empty an array in JavaScript?
... because the length property of an array is a read/write property.
Method 3 (as suggested by Anthony)
A.splice(0,A.length)
Using .splice() will work perfectly, but since the .splice() function will return an array with all the removed items, it will actually return a copy of the original array. ...
It has a DefiningQuery but no InsertFunction element… err
...he Entity becomes readonly unless you add modification functions. You need 3 modifications functions (aka Stored Procedures) one for each of Insert, Update and Delete.
But you have two options:
Change the key definion:
And convince the EF that what it thinks is a view is really a table
Or add t...
MS-DOS Batch file pause with enter key
...
|
edited Apr 30 '13 at 14:42
answered Apr 30 '13 at 14:34
...
How to count TRUE values in a logical vector
...m(z) # gives you NA
table(z)["TRUE"] # gives you 1
length(z[z == TRUE]) # f3lix answer, gives you 2 (because NA indexing returns values)
So I think the safest is to use na.rm = TRUE:
sum(z, na.rm = TRUE) # best way to count TRUE values
(which gives 1). I think that table solution is less effici...
mysql create user if not exists
...
answered May 16 '13 at 16:24
AschererAscherer
7,63933 gold badges3737 silver badges6060 bronze badges
...