大约有 44,948 项符合查询结果（耗时：0.0460秒） [XML]
How to get Linux console window width in Python
... determine the width of the console? I mean the number of characters that fits in one line without wrapping, not the pixel width of the window.
...
How to detect page zoom level in all modern browsers?
...
Now it's an even bigger mess than it was when this question was first asked. From reading all the responses and blog posts I could find, here's a summary. I also set up this page to test all these methods of measuring the zoom le...
What is a regular expression which will match a valid domain name without a subdomain?
...
Well, it's pretty straightforward a little sneakier than it looks (see comments), given your specific requirements:
/^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9]\.[a-zA-Z]{2,}$/
But note this will reject a lot of valid domains.
...
Easiest way to read from and write to files
There are a lot of different ways to read and write files ( text files , not binary) in C#.
12 Answers
...
How to compare files from two different branches?
...
git diff can show you the difference between two commits:
git diff mybranch master -- myfile.cs
Or, equivalently:
git diff mybranch..master -- myfile.cs
Note you must specify the relative path to the file. So if the file wer...
How to prevent line break at hyphens on all browsers
We have a ckeditor on our CMS. Our end users will input some long articles via that ckeditor. We need a way to prevent line break at hyphens on those articles.
...
Python debugging tips [closed]
...
PDB
You can use the pdb module, insert pdb.set_trace() anywhere and it will function as a breakpoint.
>>> import pdb
>>> a="a string"
>>> pdb.set_trace()
--Return--
> <stdin>(1)<module>()->None
(Pdb) p a
'a string'
(Pdb)
To continue execution us...
iPhone Simulator suddenly started running very slow
... have been working on an app in iphone simulator for a number of weeks and it has been running well up until now, but all of a sudden has begun running very slow both when loading content and animations. I have not made any changes to my code since I last tested it successfully.
...
How to check whether a pandas DataFrame is empty?
...
You can use the attribute df.empty to check whether it's empty or not:
if df.empty:
print('DataFrame is empty!')
Source: Pandas Documentation
share
|
improve this answe...
Simple regular expression for a decimal with a precision of 2
What is the regular expression for a decimal with a precision of 2?
17 Answers
17
...