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App Inventor 2 Encrypt.Security 安全性扩展：MD5哈希，SHA/AES/RSA/BASE6...
...pp Inventor和Thunkable安全性的扩展，它提供MD5哈希，SHA1和SHA256哈希，AES加密/解密，RSA加密/解密，BASE64编码/解码方法。权限此扩展程序不需要任何权限。事件OnErrorOccured抛出任何异常时将触发此事件。此事件中有两个变量：method和m...
AsciiConversion 拓展问题：字母开头的会出现“C2”非预期字符 - App Inven...
...，而原生并没有这个数据结构，使用拓展可以实现：UrsAI2ByteArray 字节数组扩展：读写二进制数据 - App Inventor 2 拓展
2、字符串模式下，使用Ascii拓展将二进制列表转换成字符串再发送，当二进制为0~127时，能够正常转换发送并...
How can I check the system version of Android?
Does anyone know how can I check the system version (e.g. 1.0 , 2.2 , etc.) programatically?
13 Answers
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The 'json' native gem requires installed build tools
I have ruby 1.9.2p180 (2011-02-18) [i386-mingw32] installed on my windows 7 machine. Now I tried to install the JSON gem using the command, "gem install json" and got the following error.
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How do you know what to test when writing unit tests? [closed]
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What is the difference between concurrency and parallelism?
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Passing an array to a function with variable number of args in Swift
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edited Dec 26 '17 at 14:27
Hasaan Ali
7951010 silver badges1818 bronze badges
answered Ju...
Difference between `constexpr` and `const`
... int main()
{
const int N = 3;
int numbers[N] = {1, 2, 3}; // N is constant expression
}
This is possible because N, being constant and initialized at declaration time with a literal, satisfies the criteria for a constant expression, even if it isn't declared constexpr....
C# 4.0: Can I use a TimeSpan as an optional parameter with a default value?
...meSpan? span = null) {
if (span == null) { span = TimeSpan.FromSeconds(2); }
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}
I should elaborate - the reason those expressions in your example are not compile-time constants is because at compile time, the compiler can't simply execute TimeSpan.FromSeconds(2.0) and stick the bytes o...
Check if two linked lists merge. If so, where?
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