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乐高机器人®组件 · App Inventor 2 中文网

... function HideORDispFeedback() { $("#feedback").toggle();}function makeTitleDraggable(element, titleElement) { let isDragging = false; let offsetX, offsetY; // 只在标题栏上按下时开始拖动 titleElement.onmousedown = function(e) { isDragging = true; offset...
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How to find out what group a given user has?

... Below is the script which is integrated into ansible and generating dashboard in CSV format. sh collection.sh #!/bin/bash HOSTNAME=`hostname -s` for i in `cat /etc/passwd| grep -vE "nologin|shutd|hal|sync|root|false"|awk -F':' '{print...
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Grep regex NOT containing string

...about your limitations, or perhaps you have a misconception about how your script should work. Try posting some code. – beerbajay May 2 '12 at 10:25 ...
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SQL Server Management Studio won't let me add an index to a table

...s" in order to add/edit them.... All these years wasted on writing custom scripts. face-palm I want my youth back! – MikeTeeVee Nov 17 '15 at 19:55 ...
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Using C++ library in C code

...eption like mechanisms (i.e., longjump) in the C code (as found in various scripting languages) are not required to invoke destructors for C++ objects on the stack. share | improve this answer ...
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Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?

...s not apply to the specific case linked, but it does apply to the question title and may be interesting to future readers: Due to finite precision, repeated floating-point addition is not equivalent to multiplication. Consider: float const step = 1e-15; float const init = 1; long int const count ...
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Are custom elements valid HTML5?

...stateless and ephemeral, custom elements can encapsulate state and provide script interfaces. Custom elements is a part of a larger W3 specification called Web Components, along with Templates, HTML Imports, and Shadow DOM. Web Components enable Web application authors to define widgets with a lev...
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Creation timestamp and last update timestamp with Hibernate and MySQL

...e(name = "post") public class Post extend BaseEntity { private String title; @OneToMany( mappedBy = "post", cascade = CascadeType.ALL, orphanRemoval = true ) private List<PostComment> comments = new ArrayList<>(); @OneToOne( mappedBy...
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Python's “in” set operator

...h they are not set types, have a valuable in property during validation in scripts: yn = input("Are you sure you want to do this? ") if yn in "yes": #accepts 'y' OR 'e' OR 's' OR 'ye' OR 'es' OR 'yes' return True return False I hope this helps you better understand the use of in with this...
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NameError: global name 'unicode' is not defined - in Python 3

... If you need to have the script keep working on python2 and 3 as I did, this might help someone import sys if sys.version_info[0] >= 3: unicode = str and can then just do for example foo = unicode.lower(foo) ...