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面包板与基础电路 - IoT 硬件实验的前置知识 · App Inventor 2 中文网
... 标号
能做什么
数字引脚
D0~D13
读写高低电平（0/1）。接 LED、按钮、蜂鸣器、舵机
模拟引脚
A0~A5
读连续变化的电压。接电位器、光敏电阻、土壤湿度传感器
数字引脚...
String to object in JS
...e(JSON.stringify({
hello: "world"
});
alert(myobj.hello); // 'world'
3)
Passing a function to JSON
var obj = {
hello: "World",
sayHello: (function() {
console.log("I say Hello!");
}).toString()
};
var myobj = JSON.parse(JSON.stringify(obj));
myobj.sayHello = new Function("...
What's the best practice to “git clone” into an existing folder?
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|
edited May 23 '17 at 11:55
Community♦
111 silver badge
answered Dec 13 '12 at 3:11
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TCPClient TCP客户端扩展：连接TCP服务器进行文本消息通信 · App Inventor 2 中文网
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日期
修改内容
1.0
2020-11-23
初始版本
1.1
2020-12-02
添加 UrsAI2SharedTcpClient 变体
1.2
2021-01-09
修复断开连接时 Write/Writeln 的行为
1.3
2021-04-03
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mysql: see all open connections to a given database?
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wiselandwiseland
92088 silver badges1616 bronze badges
2
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Warning: “format not a string literal and no format arguments”
Since upgrading to the latest Xcode 3.2.1 and Snow Leopard, I've been getting the warning
11 Answers
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How to get Ruby / Homebrew / RVM to work on Yosemite?
...llowing steps:
1) Open terminal
2) Type nano /usr/local/Library/brew.rb
3) In the first line change “1.8″ to “Current”, so it should look like this:
#!/System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby -W0
via http://blog.ic3man.gr/2014/06/homebrew-ruby-bad-interpr...
How to remove multiple indexes from a list at the same time? [duplicate]
...nce.
If you have an arbitrary collection of indexes, then:
indexes = [2, 3, 5]
for index in sorted(indexes, reverse=True):
del my_list[index]
Note that you need to delete them in reverse order so that you don't throw off the subsequent indexes.
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How to render a DateTime object in a Twig template
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310
Although you can use the
{{ game.gameDate|date('Y-m-d') }}
approach, keep in mind that this...
Return string without trailing slash
...
ChronosLLCChronosLLC
55333 silver badges88 bronze badges
3
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