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MediaHelper 媒体助手扩展：从媒体文件提取元数据和专辑封面 · App Inventor 2 中文网
...e.ullisroboterseite.ursai2mediahelper.aix
.aia示例文件：
MediaHelperTest.aia
版本历史
版本
日期
修改内容
1.0
2021-07-06
初始版本
1.1
2024-09-04
Android 14 适配
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Does Python have a ternary conditional operator?
...
You can index into a tuple:
(falseValue, trueValue)[test]
test needs to return True or False.
It might be safer to always implement it as:
(falseValue, trueValue)[test == True]
or you can use the built-in bool() to assure a Boolean value:
(falseValue, trueValue)[bool(<...
If using maven, usually you put log4j.properties under java or resources?
...nvironment, etc) to configure the desired logging. Thus, putting it in src/test/resources is my preferred solution.
Note: Speaking of leaving the concrete log config to the client/user, you should consider replacing log4j with slf4j in your app.
...
How can I compare two lists in python and return matches
...
A quick performance test showing Lutz's solution is the best:
import time
def speed_test(func):
def wrapper(*args, **kwargs):
t1 = time.time()
for x in xrange(5000):
results = func(*args, **kwargs)
t2 = ...
How to prevent favicon.ico requests?
...c) it looks like Firefox >= 25 doesn't like the above syntax anymore. I tested on Firefox 27 and it doesn't work while it still work on Webkit/Chrome.
So here is the new one that should cover all recent browsers. I tested Safari, Chrome and Firefox:
<link rel="icon" href="data:;base64,=">
...
Fastest Way of Inserting in Entity Framework
I'm looking for the fastest way of inserting into Entity Framework.
30 Answers
30
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How do I pull files from remote without overwriting local files?
...tailed example:
Suppose your repository is like this (you've made changes test2:
* ed0bcb2 - (HEAD, master) test2
* 4942854 - (origin/master, origin/HEAD) first
And the origin repository is like this (someone else has committed test1):
* 5437ca5 - (HEAD, master) test1
* 4942854 - first
At thi...
Calculate text width with JavaScript
...hin a few pixels of the string rendered size.
var fontSize = 12;
var test = document.getElementById("Test");
test.style.fontSize = fontSize;
var height = (test.clientHeight + 1) + "px";
var width = (test.clientWidth + 1) + "px"
console.log(height, width);
#Test
{
position: absolut...
Structure padding and packing
... 2 structs could be used by non-struct variables that could fit in.
e.g in test_struct_address() below, the variable x resides between adjacent struct g and h.
No matter whether x is declared, h's address won't change, x just reused the empty space that g wasted.
Similar case for y.
Example
(fo...
What is the maximum possible length of a .NET string?
...hod here:
static void Main(string[] args)
{
Console.WriteLine("String test, by Nicholas John Joseph Taylor");
Console.WriteLine("\nTheoretically, C# should support a string of int.MaxValue, but we run out of memory before then.");
Console.WriteLine("\nThis is a quickish test to narrow...