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The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl
...hy is this happening?
The entire ext/mysql PHP extension, which provides all functions named with the prefix mysql_, was officially deprecated in PHP v5.5.0 and removed in PHP v7.
It was originally introduced in PHP v2.0 (November 1997) for MySQL v3.20, and no new features have been added since 2...
App Inventor 2 SideBarV2 侧边栏拓展 · App Inventor 2 中文网
...用 Show 和 Hide 控制显示：
when Screen1.Initialize() {
SidebarV2_1.Create(
垂直布局_内容,
["首页", "消息", "设置"],
["home", "message", "settings"],
"sidebar_background.png")
}
when 按钮_菜单.Click() {
SidebarV2_1.Show()
}
when SidebarV2_1.AfterSelecting...
How to correctly implement custom iterators and const_iterators?
...e, std::iterator with random_access_iterator_tag.These base classes define all type definitions required by STL and do other work.
To avoid code duplication iterator class should be a template class and be parametrized by "value type", "pointer type", "reference type" or all of them (depends on impl...
What generates the “text file busy” message in Unix?
...table while it was running.
For example, I was building a make workalike called rmk, and after a while it was self-maintaining. I would run the development version and have it build a new version. To get it to work, it was necessary to use the workaround:
gcc -g -Wall -o rmk1 main.o -L. -lrmk -L...
How to sign an android apk file
...
https://developer.android.com/studio/publish/app-signing.html
Okay, a small overview without reference or eclipse around, so leave some space for errors, but it works like this
Open your project in eclipse
Press right-mouse - > tools (android tools?) - > export signed application (apk?)
G...
how to return index of a sorted list? [duplicate]
...ray([2,3,1,4,5])
>>> vals
array([2, 3, 1, 4, 5])
>>> sort_index = numpy.argsort(vals)
>>> sort_index
array([2, 0, 1, 3, 4])
If not available, taken from this question, this is the fastest method:
>>> vals = [2,3,1,4,5]
>>> sorted(range(len(vals)), key=...
sed one-liner to convert all uppercase to lowercase?
I have a textfile in which some words are printed in ALL CAPS. I want to be able to just convert everything in the textfile to lowercase, using sed . That means that the first sentence would then read, 'i have a textfile in which some words are printed in all caps.'
...
How to get last items of a list in Python?
...
a negative index will count from the end of the list, so:
num_list[-9:]
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App Inventor 2 手势识别扩展教程 - GestureDetector · App Inventor 2 中文网
...
when GestureDetector1.DoubleTapAtPoint(X, Y) {
// 双击触发
标签_状态.Text = join("双击 @ ", X, ",", Y)
}
when GestureDetector1.LongClick(X, Y) {
// 长按触发
标签_状态.Text = join("长按 @ ", X, ",", Y)
}
when GestureDetector1.ThumbEnabled(起点X, 起点Y, 终点X, 终...
Plyr视频播放器拓展：全屏、画质、字幕、缩略图、强大的用户界面 · App In...
...ialize：
when Screen1.Initialize() {
Plyr1.Initialize(
垂直布局_播放器,
"https://example.com/video.mp4",
"",
"",
"",
Plyr1.MediaTypeVideo,
[Plyr1.ControlsPlay, Plyr1.ControlsProgress, Plyr1.ControlsFullScreen])
}
when 按钮_播放.Click() {
Plyr1.Play()
}
...