大约有 4,900 项符合查询结果（耗时：0.0163秒） [XML]
Using querySelectorAll to retrieve direct children
I am able to do this:
10 Answers
10
...
How do you echo a 4-digit Unicode character in Bash?
I'd like to add the Unicode skull and crossbones to my shell prompt (specifically the 'SKULL AND CROSSBONES' (U+2620)), but I can't figure out the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", .
...
Set Django IntegerField by choices=… name
When you have a model field with a choices option you tend to have some magic values associated with human readable names. Is there in Django a convenient way to set these fields by the human readable name instead of the value?
...
How to set auto increment primary key in PostgreSQL?
I have a table in PostgreSQL with 22 columns, and I want to add an auto increment primary key.
7 Answers
...
Case insensitive XPath contains() possible?
I'm running over all textnodes of my DOM and check if the nodeValue contains a certain string.
6 Answers
...
How can I clear scrollback buffer in Tmux?
FYI, I am using Tmux through the Mac OS X Terminal app.
13 Answers
13
...
Error during installing HAXM, VT-X not working
I am an entry-level Android software developer. I recently heard about HAXM that support emulator in rendering graphics more smoothly. I downloaded appropriate file HAXM file for Windows 7 64 bit, unpacked and started installing. However, during the installation process I get this error:
...
Regex: match everything but specific pattern
I need a regex able to match everything but a string starting with a specific pattern (specifically index.php and what follows, like index.php?id=2342343 )
...
Postgres - FATAL: database files are incompatible with server
After restarting my MacBook Pro I am unable to start the database server:
6 Answers
6...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
\unnnn
Unicode代码中十六进制代码为nnnn的字符
\cN
ASCII控制字符。比如\cC代表Ctrl+C
\A
字符串开头(类似^，但不受处理多行选项的影响)
\Z
字符串结尾或行尾(不受处理多行选项的影响)
\z
字符串结尾...