大约有 24,971 项符合查询结果(耗时:0.0371秒) [XML]

https://www.tsingfun.com/it/te... 

ssl证书申请报错:challenge = [c for c in authorization[\'challenges\']...

ssl证书申请报错:challenge = [c for c in authorization['challenges'] if c['type'] == "http-01"][0] IndexError: list index out of rangechallenge-list-index-out-of-range使用acme-tiny申请ssl证书时报错:challenge = [c for c in authorization[& 39;challenges& 39;] if c[& 39;type& 39;] == ...
https://www.tsingfun.com/it/cp... 

Linux C/C++进程单实例互斥代码分享 - C/C++ - 清泛网 - 专注C/C++及内核技术

Linux C/C++进程单实例互斥代码分享linux-process-singleton分享一段LinuxC C++程序只能启动一份实例的实现代码,原理是通过文件锁互斥实现,最重要的是考虑了不同用户运行同一程序互斥的场景,已经过充分的测试,可直接用于实际项...
https://stackoverflow.com/ques... 

how to get the current working directory's absolute path from irb

... running Ruby on Windows though I don't know if that should make a difference. All I want to do is get the current working directory's absolute path. Is this possible from irb? Apparently from a script it's possible using File.expand_path(__FILE__) ...
https://stackoverflow.com/ques... 

How to detect if a specific file exists in Vimscript?

I'm looking for an elegant way in Vimscript to check if a file exists in the current directory. 4 Answers ...
https://stackoverflow.com/ques... 

AsyncTaskLoader vs AsyncTask

Since Honeycomb and the v4 Compatibility Library it is possible to use AsyncTaskLoader . From what I understand, the AsyncTaskLoader can survive through config changes like screen flips. ...
https://stackoverflow.com/ques... 

Qt: *.pro vs *.pri

What is the difference between *.pro and *.pri configuration files for qmake? 3 Answers ...
https://stackoverflow.com/ques... 

How to remove last n characters from every element in the R vector

I am very new to R, and I could not find a simple example online of how to remove the last n characters from every element of a vector (array?) ...
https://stackoverflow.com/ques... 

Get last dirname/filename in a file path argument in Bash

I'm trying to write a post-commit hook for SVN, which is hosted on our development server. My goal is to try to automatically checkout a copy of the committed project to the directory where it is hosted on the server. However I need to be able to read only the last directory in the directory strin...
https://stackoverflow.com/ques... 

Callback functions in C++

In C++, when and how do you use a callback function? 10 Answers 10 ...
https://stackoverflow.com/ques... 

“Delegate subtraction has unpredictable result” in ReSharper/C#?

... Active Oldest Votes ...