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WheelView：滚轮选择框扩展 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...ny strings.original code from WheelView: 效果类似android4.0以上原生的DatePicker 18Thanks @wildcontrol to sponsor this extensionDemo picture:this demo used 3 extensionsAll the blocks
来源：https://wangsk789.github.io/wheelview/
更多滚轮拓展见：https://www.fun123.cn/reference/ .....
AppInventor2如何请求MANAGE_EXTERNAL_STORAGE权限？ - App应用开发 - 清泛...
...目录访问权限，文件需要保存在根目录任意位置，不是APP的私有目录
[hide]A：权限名称换成：MANAGE_EXTERNAL_STORAGE
内部会拼成完整安卓权限包名：android.permission.MANAGE_EXTERNAL_STORAGE
在2个事件中输出信息查看权限授权是否成功...
一个组件怎么悬浮在另一个组件上面？ - App Inventor 2 拓展 - 清泛IT社区...
...怎么悬浮在另一个组件上面？并且可以随意改变悬浮组件的外观？？比如我想把 圆形进度条 悬浮在屏幕上，提示正在搜索或者下载。。要怎么做？或者是什么扩展能做到？https://puravidaapps.com/extensions.php
页面中搜索“floating”...
app inventor 2 有HexToString组件吗？ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
同这篇帖子《什么是 Hex 编码方式？》：https://bbs.tsingfun.com/thread-2700-1-1.html
使用 ByteArray 拓展 的 ToHex 方法可以实现将无符号数字转换为其十六进制表示。
炫酷导航条，跟着b站教学，用ai伴侣测试，不显示图标，切换正常。 - App In...
炫酷导航条，跟着b站教学，用ai伴侣测试，不显示图标，切换正常。大神们帮忙看下会是哪里的问题
Getting Java version at runtime
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Wow, that kind of blew my mind. Though in my case, all I wanted was the first two parts of the version so: Runtime.class.getPackage().getSpecificationVersion()
– Wesley Hartford
Dec 10 '14 at 21:44
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Web-scraping JavaScript page with Python
...a web driver fast enough and easy to get the work done.
Once you have installed Phantom JS, make sure the phantomjs binary is available in the current path:
phantomjs --version
# result:
2.1.1
Example
To give an example, I created a sample page with following HTML code. (link):
<!DOCTYPE ht...
Localization of DisplayNameAttribute
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I looked all over before finding this page... this is such a life saver. Thanks! Works good on MVC5 for me.
– Kris
Apr 20 '18 at 14:42
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What is `related_name` used for in Django?
... back to your model.
If you don't specify a related_name, Django automatically creates one using the name of your model with the suffix _set, for instance User.map_set.all().
If you do specify, e.g. related_name=maps on the User model, User.map_set will still work, but the User.maps. syntax is ob...
How to reshape data from long to wide format
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The reshape comments and similar argument names aren't all that helpful. However, I have found that for long to wide, you need to provide data = your data.frame, idvar = the variable that identifies your groups, v.names = the variables that will become multiple columns in wide f...