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How to pad zeroes to a string?
...ited in the parens; since only one thing is being printed, it works identically now on Py2 and Py3.
– ShadowRanger
Jan 25 '19 at 2:19
2
...
Vim for Windows - What do I type to save and exit from a file?
Using Windows XP I accidentally typed git commit -a instead of git commit -am "My commit message" , and now I'm viewing my CMD prompt filled with the file version of my commit message ("Please enter the commit message for your..."). I've added my message to the top, but now I can't figure out ho...
How to make script execution wait until jquery is loaded
...s loading so fast, that jquery hasn't finished loading before it is being called by a subsequent script. Is there a way to check for the existence of jquery and if it doesn't exist, wait for a moment and then try again?
...
廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...aliyun.com/repo/Centos-6.repo
把$releasever 全部改为6
yum clean all&yum makecache
3、安装DRBD 请参考
http://user.qzone.qq.com/58740020/blog/1448855653
3.1、不一样的地方
同步以上操作或文件,并初始化资源及启动服务
drbdadm create-md r0
service d...
change text of button and disable button in iOS
...antage of the fact that they are passed in as an argument to the IBAction calls:
- (IBAction) triggerActionWithSender: (id) sender;
This can be bound to the button and you’ll get the button in the sender argument when the action is triggered. If that’s not enough (because you need to access t...
Good Haskell source to read and learn from [closed]
...; Bird; Claessen; Jones; Tolmach; Sheard; Swiestra; Augustsson; Runciman; Wallace; Thompson; Hinze; Gibbons; Leijen; Hudak; Elliott; Finne; Chakravarty; and
Anyone who has written a functional pearl.
Note that people like me, Coutts, Mitchell, O'Sullivan, Lynagh, etc. learned our Haskell style fro...
How do I exchange keys with values in a dictionary?
...
While this seems to be correct, its really good to add an explanation of how it works rather than just the code.
– Will
Sep 10 '15 at 19:49
...
Is well formed without a ?
...k near the end of 17.2.1):
The elements used to create controls
generally appear inside a FORM
element, but may also appear outside
of a FORM element declaration when
they are used to build user
interfaces. This is discussed in the
section on intrinsic events. Note that
controls ou...
What's the difference between [ and [[ in Bash? [duplicate]
..., and works like the test binary (man test)
works about the same as [ in all the other sh-based shells in many UNIX-like environments
only supports a single condition. Multiple tests with the bash && and || operators must be in separate brackets.
doesn't natively support a 'not' operator...
How to access environment variable values?
...os.environ
import os
print(os.environ['HOME'])
Or you can see a list of all the environment variables using:
os.environ
As sometimes you might need to see a complete list!
# using get will return `None` if a key is not present rather than raise a `KeyError`
print(os.environ.get('KEY_THAT_MIGH...