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程序员之网络安全系列（三）：数据加密之对称加密算法 - 更多技术 - 清泛网...
...ed = AES_Encrypt(bytesToBeEncrypted, passwordBytes);
string result = Convert.ToBase64String(bytesEncrypted);
return result;
}
public static string DecryptText(string input, string password)
{
// Get the bytes of the string
byte[] bytesToBeDecrypted = Convert.FromBase64...
Can I call a constructor from another constructor (do constructor chaining) in C++?
... syntax is slightly different from C#:
class Foo {
public:
Foo(char x, int y) {}
Foo(int y) : Foo('a', y) {}
};
C++03: No
Unfortunately, there's no way to do this in C++03, but there are two ways of simulating this:
You can combine two (or more) constructors via default parameters:
class...
How can I disable ARC for a single file in a project?
...
For Xcode 4.3 the easier way might be: Edit/Refactor/Convert to objective-C ARC, then check off the files you don't want to be converted. I find this way the same as using the compiler flag above.
shar...
What are forward declarations in C++?
... to contain very clever logic to try and work out which 'add' you actually intended to call, when the 'add' function may live in a different object file the linker is joining with the one that uses add to produce a dll or exe. It's possible that the linker may get the wrong add. Say you wanted to us...
Subclassing a Java Builder class
...hods a generic argument.
public class NutritionFacts {
private final int calories;
public static class Builder<T extends Builder<T>> {
private int calories = 0;
public Builder() {}
public T calories(int val) {
calories = val;
...
Base64 Java encode and decode a string [duplicate]
...rt java.io.UnsupportedEncodingException;
import javax.xml.bind.DatatypeConverter;
public class EncodeString64 {
public static void main(String[] args) throws UnsupportedEncodingException {
String str = "77+9x6s=";
// encode data using BASE64
String encoded = Datatyp...
Android: ListView elements with multiple clickable buttons
...
it would be great to have answers in SO itself and not point to some other page. The blog link is dead!
– gsb
Apr 8 '15 at 18:41
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How to initialise a string from NSData in Swift
...
Is it possible to convert NSData directly into a Swift String (instead of an NSString)?
– ma11hew28
Jun 29 '15 at 18:45
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How do you set the max number of characters for an EditText in Android?
...LengthFilter(MAX_NUM) });
Via xml:
<EditText
android:maxLength="@integer/max_edittext_length"
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How do I iterate over a JSON structure? [duplicate]
...ject. That is why this works. However if anybody have a JSON object he can convert it to a JS object and then use your method. To convert a JSON object to JS object use jsObject = JSON.parse(jsonObject);
– prageeth
Oct 31 '14 at 4:48
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