大约有 2,000 项符合查询结果（耗时：0.0448秒） [XML]
VC窗口刷新InvalidateRect和UpdateWindow - C/C++ - 清泛网 - 专注C/C++及内核技术
...TIMER消息一样被丢弃，但Windows总是在消息循环空的时候才把WM_PAINT放入其中。
无效区域的坐标并不附带在WM_PAINT消息的参数中，在程序中有其他方法可以获取。WM_PAINT消息只是通知程序有个区域需要更新而已，所以Windows也不会同...
Which mime type should I use for mp3
...riation of a mime type for a specific file. I was trying to upload mp3 and zip files with open source php class, that what I have found:
Firefox (mp3): audio/mpeg
Firefox (zip): application/zip
Chrome (mp3): audio/mp3
Chrome (zip): application/octet-stream
Opera (mp3): audio/mp3
Opera (zip):...
How to take the first N items from a generator or list in Python? [duplicate]
...
In my taste, it's also very concise to combine zip() with xrange(n) (or range(n) in Python3), which works nice on generators as well and seems to be more flexible for changes in general.
# Option #1: taking the first n elements as a list
[x for _, x in zip(xrange(n), gen...
Should IBOutlets be strong or weak under ARC?
...ng pointer bug I've experienced:
A UIViewController has a UITextField for zip code. It uses CLLocationManager to reverse geocode the user's location and set the zip code. Here's the delegate callback:
-(void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocat...
Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
...
I'd just use zip:
In [1]: from pandas import *
In [2]: def calculate(x):
...: return x*2, x*3
...:
In [3]: df = DataFrame({'a': [1,2,3], 'b': [2,3,4]})
In [4]: df
Out[4]:
a b
0 1 2
1 2 3
2 3 4
In [5]: df["A1"], ...
Creating dataframe from a dictionary where entries have different lengths
...k]) for k, v in data.items()], axis=1)
Use pandas.DataFrame and itertools.zip_longest
For iterables of uneven length, zip_longest fills missing values with the fillvalue.
The zip generator needs to be unpacked, because the DataFrame constructor won't unpack it.
from itertools import zip_longest
...
Is there an easy way to attach source in Eclipse?
...
Up until yesterday I was stuck painstakingly downloading source zips for tons of jars and attaching them manually for every project. Then a colleague turned me on to The Java Source Attacher. It does what eclipse should do - a right click context menu that says "Attach Java Source".
I...
Is there a quick way to delete a file from a Jar / war without having to extract the jar and recreat
...
zip -d file.jar unwanted_file.txt
jar is just a zip file after all. Definitely much faster than uncompressing/recompressing.
share
|
...
How to perform better document version control on Excel files and SQL schema files
...sions.
The same is true for .xlsx if you decompress them. .xlsx files are zipped up directories of XML files (See How to properly assemble a valid xlsx file from its internal sub-components?). Git will view them as binary unless decompressed. It is possible to unzip the .xlsx and track the changes ...
How to run a process with a timeout in Bash? [duplicate]
...ld be missing from anything that is FreeBSD, NetBSD, OS X, HP/UX, Solaris, AIX, etc.
– Graham
Apr 19 '12 at 22:32
3
...