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micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...错了。
运行故障
java.lang.ExceptionInInitializerError at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribeBluetoothLEint.java:357) at
edu.mit.appinventor.ble.BluetoothLEintSBLEReadOperation.run(BluetoothLEint.java:325) at android.os.Handler.handleCallback(Handler.java:1013) ...
Real world example about how to use property feature in python?
....lookup("a")
return self._a
a = property(get_a)
This was in a web app where any given page view might only need one particular attribute of this kind, but the underlying objects themselves might have several such attributes - initialising them all on construction would be wasteful, and prop...
What are the benefits of using C# vs F# or F# vs C#? [closed]
...nt
The advantages of C# are that it's often more accurate to "imperative"-applications (User-interface, imperative algorithms) than a functional programming language, that the .NET-Framework it uses is designed imperatively and that it's more widespread.
Furthermore you can have F# and C# together...
How exactly does the “Specific Version” property of an assembly reference work in Visual Studio?
...out to learn as much as possible about how the property works. Even SO, it appears to me, does not have all the answers, so here is my attempt at self-answering the question:
...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...globalAlpha works perfectly. Is part of the standard: whatwg.org/specs/web-apps/current-work/multipage/…
– Aleris
Feb 6 '11 at 16:51
...
What is the difference between integration testing and functional testing? [closed]
...you test the integrated software only but you test where the data flow is happening and is there any changes happening in the database.
For example: Sending e-mail
You send one mail to someone, there is a data flow and also change in database (the sent table increases value by 1)
Remember - cli...
SQL Server Script to create a new user
...eges).
However, if you are going to be accessing the SQL Server from an application, then you will want to set the server up for "Mixed Mode" (both Windows and SQL logins) and create a Login as shown above. You'll then "GRANT" priviliges to that SQL Login based on what is needed for your app. S...
Unable to resolve “unable to get local issuer certificate” using git on Windows with self-signed cer
... even tell them to turn SSL back on. This is why security vulnerabilities happen.
– Edgar Aroutiounian
Feb 2 '16 at 23:22
...
Return HTTP status code 201 in flask
...sk import Response
> return Response("{'a':'b'}", status=201, mimetype='application/json')
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How to debug heap corruption errors?
I am debugging a (native) multi-threaded C++ application under Visual Studio 2008. On seemingly random occasions, I get a "Windows has triggered a break point..." error with a note that this might be due to a corruption in the heap. These errors won't always crash the application right away, altho...