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Arduino101 光线传感器 · App Inventor 2 中文网
...LightSensorDataReceived事件将被触发。
Parameters:
* intensity (_number_) — The intensity of the light received from the sensor, linear in the voltage provided by the light sensor.
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Arduino101 湿度传感器 · App Inventor 2 中文网
...值时，MoistureReceived事件将被触发。
Parameters:
* moisture (_number_) — The moisture level measured, between 0 and 100.
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Arduino101 近距离传感器 · App Inventor 2 中文网
...器接收到距离测量值时触发此事件。
参数:
* proximity (_number_) —
物体与传感器的距离。由于物理和数学限制，该值范围在6到80厘米之间。
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终于不用拿复选框凑了：App Inventor 新组件「单选框」，问卷表单一个搞定 ...
... 男,女,保密，勾选横向排列；再拖一个按钮（改名 按钮_提交）、一个标签（改名 标签_结果）：
▲ 性别选择，提交前检查是否选了
重点在提交时的判断：单选框默认一项都不选，这时「选中项索引」是 0。提交前一定要...
TemplateDoesNotExist - Django Error
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Make sure you have rest_framework listed in your settings.py INSTALLED_APPS.
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Combining multiple commits before pushing in Git [duplicate]
I have a bunch of commits on my local repository which are thematically similar. I'd like to combine them into a single commit before pushing up to a remote. How do I do it? I think rebase does this, but I can't make sense of the docs.
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SVN needs-lock 设置强制只读属性（官方资料） - 更多技术 - 清泛网 - 专注...
...when the property is not available
sets the svn:needs-lock property on all already existing binary files in repositories
configures users to automatically set property svn:needs-lock on newly added binary files
1) - create a pre-commit.cmd script in the repository\hooks directory. This scri...
Passing variables in remote ssh command
...from my machine using ssh and pass through the environment variable $BUILD_NUMBER
7 Answers
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Unsafe JavaScript attempt to access frame with URL
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From a child document of different origin you are not allowed access to the top window's location.hash property, but you are allowed to set the location property itself.
This means that given that the top windows location is http://example.com/page/, instead of doing
parent.lo...
App Inventor 2 SliderVertical 扩展：垂直的滑动条 · App Inventor 2 中文网
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when Screen1.Initialize() {
SliderVertical1.SliderVertical(垂直布局_滑块)
SliderVertical1.MinValue = 0
SliderVertical1.MaxValue = 100
SliderVertical1.ThumbPosition = 50
}
when SliderVertical1.PositionChanged(thumbPosition) {
标签_数值.Text = join("当前值：", thumbPosition)...