大约有 44,700 项符合查询结果（耗时：0.0450秒） [XML]
C++ deprecated conversion from string constant to 'char*'
I have a class with a private char str[256];
11 Answers
11
...
Detect current device with UI_USER_INTERFACE_IDIOM() in Swift
... the UI_USER_INTERFACE_IDIOM() macro is only required when targeting iOS 3.2 and below. When deploying to iOS 3.2 and up, you can use [UIDevice userInterfaceIdiom] directly.
share
|
improve this ans...
Get exception description and stack trace which caused an exception, all as a string
...
ianace
1,60722 gold badges1717 silver badges3131 bronze badges
answered Dec 30 '10 at 17:05
kindallkindall
...
How can I get the full object in Node.js's console.log(), rather than '[Object]'?
... |
edited Sep 4 '18 at 18:28
Ikbel
6,07422 gold badges2828 silver badges3939 bronze badges
answered May ...
Check if OneToOneField is None in Django
...
92
To check if the (OneToOne) relation exists or not, you can use the hasattr function:
if hasattr...
How do I request a file but not save it with Wget? [closed]
...
259
Use q flag for quiet mode, and tell wget to output to stdout with O- (uppercase o) and redirec...
How to correctly close a feature branch in Mercurial?
...
218
One way is to just leave merged feature branches open (and inactive):
$ hg up default
$ hg me...
What Ruby IDE do you prefer? [closed]
...
25 Answers
25
Active
...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...
12 Answers
12
Active
...
How can I add numbers in a Bash script?
...
For integers:
Use arithmetic expansion: $((EXPR))
num=$((num1 + num2))
num=$(($num1 + $num2)) # Also works
num=$((num1 + 2 + 3)) # ...
num=$[num1+num2] # Old, deprecated arithmetic expression syntax
Using the external expr utility. Note that this is only needed for ...