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扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
... the fingers, so that we can rotate an image with correct directions. Each time the user touches the screen with two fingers, there is a line formed by two fingers. When the user rotates with two fingers, a new line will be formed and there is a angle between the previous line and the current line. ...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
... the fingers, so that we can rotate an image with correct directions. Each time the user touches the screen with two fingers, there is a line formed by two fingers. When the user rotates with two fingers, a new line will be formed and there is a angle between the previous line and the current line. ...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
... the fingers, so that we can rotate an image with correct directions. Each time the user touches the screen with two fingers, there is a line formed by two fingers. When the user rotates with two fingers, a new line will be formed and there is a angle between the previous line and the current line. ...
CSS '>' selector; what is it? [duplicate]
I've seen the "greater than" ( > ) used in CSS code a few times, but I can't work out what it does. What does it do?
7 A...
namedtuple and default values for optional keyword arguments
...er -> for functions) in Python is that they are evaluated at definition time*. So, since "class names become defined once the entire body of the class has been executed", the annotations for 'Node' in the class fields above must be strings to avoid NameError.
This kind of type hints is called "f...
Display current time in 12 hour format with AM/PM
Currently the time displayed as 13:35 PM
However I want to display as 12 hour format with AM/PM, i.e 1:35 PM instead of 13:35 PM
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JSONDecodeError: Expecting value: line 1 column 1 (char 0)
...ads(j.read())
I'm a little embarrassed to admit that this can happen sometimes:
contents = json.loads(json_file_path)
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git:// protocol blocked by company, how can I get around that?
...https://github".insteadOf git://github
You can run this command multiple times using different replacements. However, in the event that a URL matches multiple replacements, the longest match "wins". Only a single replacement will be made per URL.
System-Wide Changes for Sysadmins
If you're a Lin...
How to get current time and date in Android
How can I get the current time and date in an Android app?
40 Answers
40
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Python Linked List
... linked lists, and linked lists have some nice properties such as constant-time concatenation, and being able to reference separate parts of them. Make them immutable and they are really easy to work with!
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