大约有 35,470 项符合查询结果（耗时：0.0611秒） [XML]
Assign multiple columns using := in data.table, by group
... a b col1 col2 mean sum Name1 Longer%
# 1: 1 1 hi hello 2.5 5 10 15
# 2: 2 2 hi hello 3.5 7 14 21
# 3: 3 3 hi hello 4.5 9 18 27
# 4: 1 4 hi hello 2.5 5 10 15
# 5: 2 5 hi hello 3.5 7 14 21
# 6: 3 6 hi hello 4.5 9 18 27
...
Sublime text 2 - find and replace globally ( all files and in all directories )
... |
edited Jan 1 '13 at 8:01
answered Jan 1 '13 at 7:39
Ric...
How can I deploy/push only a subdirectory of my git repo to Heroku?
...
220
There's an even easier way via git-subtree. Assuming you want to push your folder 'output' as t...
dynamically add and remove view to viewpager
...al number of pages that the ViewPage can display. This must
// never be 0.
@Override
public int getCount ()
{
return views.size();
}
//-----------------------------------------------------------------------------
// Used by ViewPager.
@Override
public boolean isViewFromObject...
How do I test if a string is empty in Objective-C?
...
30 Answers
30
Active
...
How do I use an INSERT statement's OUTPUT clause to get the identity value?
...
answered Jun 12 '12 at 15:07
marc_smarc_s
650k146146 gold badges12251225 silver badges13551355 bronze badges
...
Sublime Text 2 and 3: open the same file multiple times
... "file view", hit Enter
– Eric
Apr 20 '18 at 12:16
2
...
How to delete a word and go into insert mode in Vim?
...
|
edited Sep 7 '09 at 4:30
answered Sep 4 '09 at 13:20
...
How to convert An NSInteger to an int?
...
206
Ta da:
NSInteger myInteger = 42;
int myInt = (int) myInteger;
NSInteger is nothing more than...
Hash and salt passwords in C#
...SaltBytes =
new byte[plainText.Length + salt.Length];
for (int i = 0; i < plainText.Length; i++)
{
plainTextWithSaltBytes[i] = plainText[i];
}
for (int i = 0; i < salt.Length; i++)
{
plainTextWithSaltBytes[plainText.Length + i] = salt[i];
}
return algorithm.Compute...