大约有 31,100 项符合查询结果(耗时:0.0392秒) [XML]

https://stackoverflow.com/ques... 

How do I read configuration settings from Symfony2 config.yml?

I have added a setting to my config.yml file as such: 6 Answers 6 ...
https://stackoverflow.com/ques... 

Express-js can't GET my static files, why?

I've reduced my code to the simplest express-js app I could make: 16 Answers 16 ...
https://stackoverflow.com/ques... 

adb not finding my device / phone (MacOS X)

...list in adb . Lots of other phones and devices work fine for me so I know my setup is good. 34 Answers ...
https://stackoverflow.com/ques... 

How to log something in Rails in an independent log file?

...ect like the usual Rails logger: class User < ActiveRecord::Base def my_logger @@my_logger ||= Logger.new("#{Rails.root}/log/my.log") end def before_save my_logger.info("Creating user with name #{self.name}") end end Here I used a class attribute to memoize the logger. This wa...
https://stackoverflow.com/ques... 

NoClassDefFoundError - Eclipse and Android

... I had this problem after updating ADT. I was storing all of my JAR files in a folder called "lib" and adding the jars to the build path the normal Eclipse way. This worked fine until my update. After my update, I was getting the NoClassDefFoundError for a class that I could clearly ...
https://stackoverflow.com/ques... 

Changing every value in a hash in Ruby

...string objects): # Two ways to achieve the same result (any Ruby version) my_hash.each{ |_,str| str.gsub! /^|$/, '%' } my_hash.each{ |_,str| str.replace "%#{str}%" } If you want the hash to change in place, but you don't want to affect the strings (you want it to get new strings): # Two ways to ...
https://stackoverflow.com/ques... 

Selecting/excluding sets of columns in pandas [duplicate]

... is there a way of just selecting the n'th column? ie: df1 = my_df[[n]] where n is the last column of n number of columns, I'm trying negative indexing [[-1]]<- it isn't working :( help!~ – 3kstc Mar 8 '18 at 3:26 ...
https://stackoverflow.com/ques... 

How do I fetch lines before/after the grep result in bash?

... This prints 10 lines of trailing context after matching lines grep -i "my_regex" -A 10 If you need to print 10 lines of leading context before matching lines, grep -i "my_regex" -B 10 And if you need to print 10 lines of leading and trailing output context. grep -i "my_regex" -C 10 Examp...
https://stackoverflow.com/ques... 

setting an environment variable in virtualenv

...vironment variables to get its configuration, but I use virtualenv to test my app locally first. 10 Answers ...
https://stackoverflow.com/ques... 

MySQL error 2006: mysql server has gone away

I'm running a server at my office to process some files and report the results to a remote MySQL server. 28 Answers ...