大约有 45,000 项符合查询结果(耗时:0.0449秒) [XML]
awk without printing newline
...
222
awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls
print w...
How to change the type of a field?
...
215
The only way to change the $type of the data is to perform an update on the data where the dat...
builtins.TypeError: must be str, not bytes
I've converted my scripts from Python 2.7 to 3.2, and I have a bug.
2 Answers
2
...
Convert DataFrame column type from string to datetime, dd/mm/yyyy format
...'t strict).
Here it is in action:
In [11]: pd.to_datetime(pd.Series(['05/23/2005']))
Out[11]:
0 2005-05-23 00:00:00
dtype: datetime64[ns]
You can pass a specific format:
In [12]: pd.to_datetime(pd.Series(['05/23/2005']), format="%m/%d/%Y")
Out[12]:
0 2005-05-23
dtype: datetime64[ns]
...
Fetch frame count with ffmpeg
... question:
Media Info: Language "Undetermined (und)" - Type "vide:avc1" - 2525 samples
In this example the video stream has 2525 frames.
boxdumper
For MP4/M4V/M4A/MOV files.
boxdumper is a simple tool from l-smash. It will output a large amount of information. Under the stsz sample size box ...
Test if string is a number in Ruby on Rails
...
12 Answers
12
Active
...
Converting of Uri to String
...
293
Uri to String
Uri uri;
String stringUri;
stringUri = uri.toString();
String to Uri
Uri uri...
ansible: lineinfile for several lines?
...
228
You can use a loop to do it. Here's an example using a with_items loop:
- name: Set some kern...
