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用户界面（UI）组件 · App Inventor 2 中文网
...图标显示，需是方形尺寸 png 或 jpeg 图像，最大分辨率 1024 x 1024 像素。
较大的图像可能会导致编译或安装应用程序失败。
构建服务器将为 Android 设备生成标准尺寸的图像。
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Are there any side effects of returning from inside a using() statement?
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answered Mar 3 '10 at 9:07
Jon SkeetJon Skeet
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NSLog an object's memory address in overridden description method
...irVladimir
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How to revert a folder to a particular commit by creating a patch
...git checkout to update your repository to a specific state.
git checkout e095 -- somefolder
As for your question about generating the diff, that would work too. Just generate the diff to go from your current state back to e095:
git diff 89cd..e095 -- somefolder
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How to check for Is not Null And Is not Empty string in SQL server?
...ou only want to match "" as an empty string
WHERE DATALENGTH(COLUMN) > 0
If you want to count any string consisting entirely of spaces as empty
WHERE COLUMN <> ''
Both of these will not return NULL values when used in a WHERE clause. As NULL will evaluate as UNKNOWN for these rather...
How to increase scrollback buffer size in tmux?
...alue is taken from the history-limit session option (the default value is 2000).
To create a pane with a different value you will need to set the appropriate history-limit option before creating the pane.
To establish a different default, you can put a line like the following in your .tmux.conf fi...
Expand/collapse section in UITableView in iOS
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You have to make your own custom header row and put that as the first row of each section. Subc...
View entire check in history TFS
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edited Oct 13 '10 at 0:35
Preet Sangha
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How to completely remove node.js from Windows
I uninstalled my previous version of node.js (0.8.11) and downloaded the latest, 0.10.24 from the node.js website and installed it. However, after running node --version , it still indicates that I'm running v0.8.11. Obviously, some stuff was left behind during the uninstall process, and it's causi...
What events does an fire when it's value is changed?
...5
alex
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answered Oct 15 '10 at 7:30
Jacob Relkin...