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App Inventor 2 蓝牙BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节...
...写入路径
位于 BLEWriteOperation.write() 方法第678-690行：
if (mClass == String.class) {
byte[] str = ((String) data.get(0)).getBytes();
// ↓ 23字节硬限制！
final int len = Math.min(23, str.length + (null...
SVG图像加载扩展 - 第三方扩展集合 · App Inventor 2 中文网
...位为像素。
不透明度
设置SVG图像的不透明度，范围为0.0-1.0。
旋转角度
设置SVG图像的旋转角度，单位为度。
水平缩放
设置SVG图像的水平缩放比例。
垂直缩放
设置SVG图像的垂直缩放比例。
方法
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Text overflow ellipsis on two lines
...</p>
</div>
</div>
CSS:
html,body,p {
margin: 0;
padding: 0;
font-family: sans-serif;
}
.ellipsis {
overflow: hidden;
height: 200px;
line-height: 25px;
margin: 20px;
border: 5px solid #AAA;
}
.ellipsis:before {
content: "";
float: left...
What's the difference between Invoke() and BeginInvoke()
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answered Oct 23 '08 at 12:40
Jon SkeetJon Skeet
1210k772772 gold badges85588558 silver badges88218821 bronze badges
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How to prove that a problem is NP complete?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Nov 27 '10 at 23:11
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Use of the MANIFEST.MF file in Java
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The content of the Manifest file in a JAR file created with version 1.0 of the Java Development Kit is the following.
Manifest-Version: 1.0
All the entries are as name-value pairs. The name of a header is separated from its value by a colon. The default manifest shows that it conforms to ver...
When to use cla(), clf() or close() for clearing a plot in matplotlib?
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edited Jul 6 '18 at 2:08
spinkus
4,29411 gold badge2222 silver badges4646 bronze badges
answered Nov...
How remove word wrap from textarea?
...wrap="soft" to explicitly disable wrap:
<textarea name="nowrap" cols="30" rows="3" wrap="soft"></textarea>
EDIT: The "wrap" attribute is not officially supported. I got it from the german SELFHTML page (an english source is here) that says IE 4.0 and Netscape 2.0 support it. I also te...
Confirm deletion in modal / dialog using Twitter Bootstrap?
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403
GET recipe
For this task you can use already available plugins and bootstrap extensions. Or yo...
updating table rows in postgres using subquery
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720
Postgres allows:
UPDATE dummy
SET customer=subquery.customer,
address=subquery.address,
...