大约有 46,000 项符合查询结果（耗时：0.0537秒） [XML]
How can I validate a string to only allow alphanumeric characters in it?
How can I validate a string using Regular Expressions to only allow alphanumeric characters in it?
10 Answers
...
Maven 3 warnings about build.plugins.plugin.version
Since I updated to Maven 3 I get the following warning messages at each build :
7 Answers
...
How to cast an object in Objective-C
Is there a way to cast objects in objective-c much like the way objects are cast in VB.NET?
5 Answers
...
What does “while True” mean in Python?
While WHAT is True?
15 Answers
15
...
RootViewController Switch Transition Animation
Is there any way to have a Transition/animation effect while replacing an existing viewcontroller as rootviewcontroller with a new one in the appDelegate?
...
How to check if a file contains a specific string using Bash
I want to check if a file contains a specific string or not in bash. I used this script, but it doesn't work:
11 Answers
...
Is there a way to make a link clickable in the OSX Terminal?
I am planning on developing an Mxmlc to Textmate formatter, one that formats mxmlc errors as clickable links, so you can open them up quickly in Textmate as Textmate has a url scheme e.g.: txmt://open/?url=file://~/.bash_profile&line=11&column=2.
...
Convert to binary and keep leading zeros in Python
I'm trying to convert an integer to binary using the bin() function in Python. However, it always removes the leading zeros, which I actually need, such that the result is always 8-bit:
...
What does $$ mean in the shell?
I once read that one way to obtain a unique filename in a shell for temp files was to use a double dollar sign ( $$ ). This does produce a number that varies from time to time... but if you call it repeatedly, it returns the same number. (The solution is to just use the time.)
...
How to fix bower ECMDERR
I'm using "yeoman" and "bower" on windows 7 but got the following error when I create the app
13 Answers
...