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用户界面（UI）组件 · App Inventor 2 中文网
...使用 getWebViewString() 和 setWebViewString(text) 方法操作 window.AppInventor 的Javascript对象。
> 例如：如果Web浏览框打开包含 Javascript 命令的页面：
document.write("在WEB页面Javascript中输出AppInventor设置的交换字串：" + window.AppInventor.getWebViewSt...
Can I force pip to reinstall the current version?
I've come across situations where a current version of a package seems not to be working and requires reinstallation. But pip install -U won't touch a package that is already up-to-date. I see how to force a reinstallation by first uninstalling (with pip uninstall ) and then installing, but is th...
How to clear Facebook Sharer cache?
...red Apr 29 '16 at 9:59
Thorkil VærgeThorkil Værge
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Git merge two local branches
... git checkout branch-A is more understandable
– Erdinç Çorbacı
Mar 22 '18 at 8:34
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__getattr__ on a module
... answered Mar 15 '10 at 13:24
Håvard SHåvard S
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GIF Animated 扩展：可点击透明背景动画GIF播放器 · App Inventor 2 中文网
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目前AppInventor2用于显示图片的组件是“图像”组件，不过如果设置图片为gif的话，设计视图中图片预览会展示动图，但是通过AI伴侣测试或编译成apk真机测试，就会发现图片不...
Eclipse syntax highlighting preferences save and restore
...ered Feb 23 '17 at 15:48
ℛɑƒæĿᴿᴹᴿℛɑƒæĿᴿᴹᴿ
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The opposite of Intersect()
...d Apr 11 '11 at 10:56
Øyvind BråthenØyvind Bråthen
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Delete last char of string
...blem should not exist if you dont create a trailing char. Check @Øyvind Bråthen solution if you are in OP's boat.
– aloisdg moving to codidact.com
Jun 6 '18 at 9:48
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How to find whether or not a variable is empty in Bash
...in practice this tests whether $variable is empty or not. As an addition (3½ years after the fact :-) ) I would never use this myself since -z does what I probably want in a clearer way, but I wanted to add this answer since this method is frequently seen "in the wild"; perhaps written this way on ...