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Format number as fixed width, with leading zeros [duplicate]
...to use sprintf. This uses C style formatting codes embedded in a character string to indicate the format of any other arguments passed to it. For example, the formatting code %3d means format a number as integer of width 3:
a <- seq(1,101,25)
sprintf("name_%03d", a)
[1] "name_001" "name_026" "n...
What is the Python equivalent for a case/switch statement? [duplicate]
... @IanMobbs It's almost NEVER "proper" to put code in a constant string in quotes then eval it. 1) code doesn't get checked by your editor for validity. 2) it doesn't get optimised to bytecode at compilation. 3) you can't see syntax highlighting. 4) fiddly if you have multiple quotes - in...
How to create a circular ImageView in Android? [duplicate]
...fig.ARGB_8888);
Canvas canvas = new Canvas(output);
final String color = "#BAB399";
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, radius, radius);
paint.setAntiAlias(true);
paint.setFilterBitmap(true);
paint.setDither(true...
Python 'If not' syntax [duplicate]
... @EdgarAroutiounian Yes. Same or empty sets, tuples, dictionaries, strings, etc.
– user395760
May 24 '13 at 16:32
5
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SyntaxError of Non-ASCII character [duplicate]
...rt sys
print sys.getdefaultencoding()
Also see:
Why declare unicode by string in python?
Changing default encoding of Python?
Correct way to define Python source code encoding
share
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improve t...
Opposite of push(); [duplicate]
...rom exampleArray and return that element ("hi") but it will not delete the string "myName" from the array because "myName" is not the last element.
What you need is shift() or splice():
var exampleArray = ['myName'];
exampleArray.push('hi');
console.log(exampleArray);
exampleArray.shift(...
BrightnessTools 拓展：设置手机亮度的工具 · App Inventor 2 中文网
...
error
String
返回错误的描述信息。
检测到任何亮度...
How to run a PowerShell script from a batch file
... New-Item -Path . -Name "Test.txt" -ItemType "file" -Value "This is a text string." -Force > "%WD%PSHELLFILE.ps1"
ECHO add-content -path "./Test.txt" -value "`r`nThe End" >> "%WD%PSHELLFILE.ps1"
powershell.exe -ExecutionPolicy Bypass -File "%WD%PSHELLFILE.ps1"
del "%WD%PSHELLFILE.ps1"
Las...
Diff Algorithm? [closed]
...m was independently discovered as described in "Algorithms for Approximate String Matching", E. Ukkonen, `Information and Control' Vol. 64, 1985, pp. 100-118.
Reading the papers then looking at the source code for an implementation should be more than enough to understand how it works.
...
Extract date (yyyy/mm/dd) from a timestamp in PostgreSQL
...om a character field representation to a date you can use:
select date(substring('2011/05/26 09:00:00' from 1 for 10));
Test code:
create table test_table (timestamp_field timestamp);
insert into test_table (timestamp_field) values(current_timestamp);
select timestamp_field, date(timestamp_field...