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Difference between class and type

... 123 A class is a type. An interface is a type. A primitive is a type. An array is a type. There...
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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网

...数据包被转换为以分号分隔的十进制数字字符串,例如“123;33;0;44”。在 AI2 应用程序中,您可以使用 String.Split 获取字节列表。 对于转换,我使用以下算法: 1) 用分号替换所有逗号 2) 用分号拆分字符串 3) 删除前导和尾随...
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When and why I should use session_regenerate_id()?

... is identified by his session id. // User orders items $shopcart->add('123', 20); $shopcart->add('124', 18); $shopcart->add('127', 5); For each product added, a record is made in my shopcart table. Also identified by the session id. // User saves cart in order to use it later $shopcart-...
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How do I change the background color of a plot made with ggplot2

... 123 To change the panel's background color, use the following code: myplot + theme(panel.backgrou...
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How to check if an object is nullable?

...t { return true; } } then static void Main(string[] args) { int a = 123; int? b = null; object c = new object(); object d = null; int? e = 456; var f = (int?)789; bool result1 = ValueTypeHelper.IsNullable(a); // false bool result2 = ValueTypeHelper.IsNullable(b); /...
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Is there a perfect algorithm for chess? [closed]

...around 10^46. The complete chess search tree (Shannon number) is around 10^123, based on an average branching factor of 35 and an average game length of 80. For comparison, the number of atoms in the observable universe is commonly estimated to be around 10^80. All endgames of 6 pieces or less have...
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Cannot push to GitHub - keeps saying need merge

... 123 This normally happens when you git commit and try to git push changes before git pulling on th...
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Differences between Intent and PendingIntent

...argetActivity.class); i.putExtra("Key1", "ABC"); i.putExtra("Key2", "123"); // Starts TargetActivity startActivity(i); IMPLICIT INTENTS // Implicit Intent by specifying a URI Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.example.com")); // Starts Implicit Activ...
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What are the undocumented features and limitations of the Windows FINDSTR command?

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Should I use single or double colon notation for pseudo-elements?

...nswered Apr 16 '12 at 21:25 user123444555621user123444555621 123k2323 gold badges101101 silver badges120120 bronze badges ...