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创建自定义 TinyWebDB 服务 · App Inventor 2 中文网
...试很有帮助，但它由所有 App Inventor 用户共享，并且有 1000 个条目的限制。如果您使用它，您的数据最终将被覆盖。
对于您编写的大多数应用程序，您会希望创建一个不与其他 App Inventor 应用程序和程序员共享的自定义 Web 服务...
What's the advantage of a Java enum versus a class with public static final fields?
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answered Apr 2 '12 at 0:51
casablancacasablanca
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Set custom HTML5 required field validation message
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+150
Code snippet
Since this answer got very much attention, here is a nice configurable snippet I came up with:
/**
* @author ComFreek...
Inserting a PDF file in LaTeX
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IcyFlame
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answered Apr 29 '10 at 18:16
MicaMica
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MyListView 拓展：可定制列表 · App Inventor 2 中文网
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图标外观
IconWidth
图标宽度，默认 40
IconHeight
图标高度，默认 40
IconShape
图标形状（0=默认, 1=圆角, 2=矩形, 3=椭圆）
IconBgColor
图标背景色
IconTextColor
图标文字颜色
IconTextFontSize
图标文字大小，...
How to drop columns by name in a data frame
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answered Mar 8 '11 at 15:03
jubajuba
41k1111 gold badges9696 silver badges109109 bronze badges
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Hidden features of Windows batch files
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share
edited Aug 7 '10 at 18:00
community wiki
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How to create a GUID/UUID in Python
...n 2 and 3):
>>> import uuid
>>> uuid.uuid4()
UUID('bd65600d-8669-4903-8a14-af88203add38')
>>> str(uuid.uuid4())
'f50ec0b7-f960-400d-91f0-c42a6d44e3d0'
>>> uuid.uuid4().hex
'9fe2c4e93f654fdbb24c02b15259716c'
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best way to preserve numpy arrays on disk
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edited Apr 14 '15 at 15:00
answered Mar 8 '12 at 15:02
Jo...
How to center a Window in Java?
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Tudor
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answered Sep 28 '08 at 0:49
Andrew SwanAndrew Swan
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