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How and when to use ‘async’ and ‘await’
...ender, EventArgs e)
{
// Call the method that runs asynchronously.
string result = await WaitAsynchronouslyAsync();
// Call the method that runs synchronously.
//string result = await WaitSynchronously ();
// Display the result.
textBox1.Text += result;
}
// The following ...
Are HTTPS headers encrypted?
...ers.
That's why SSL on vhosts doesn't work too well - you need a dedicated IP address because the Host header is encrypted.
†The Server Name Identification (SNI) standard means that the hostname may not be encrypted if you're using TLS. Also, whether you're using SNI or not, the TCP and IP header...
How do I specify a pointer to an overloaded function?
...e functions):
void f_c(char i)
{
return f(i);
}
void scan(const std::string& s)
{
std::for_each(s.begin(), s.end(), f_c);
}
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Most efficient way to concatenate strings?
What's the most efficient way to concatenate strings?
17 Answers
17
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各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...p);
C#读写文件：
using System.IO;
private void ReadWriteFunc(string str)
{
// 写文件
using (StreamWriter sw = new StreamWriter(@"test.txt"))
{
sw.WriteLine("file content...");
sw.Flush();
sw.Close();
}
// 读文件...
How to parse the AndroidManifest.xml file inside an .apk package
...// 0th word is 03 00 08 00
// 3rd word SEEMS TO BE: Offset at then of StringTable
// 4th word is: Number of strings in string table
// WARNING: Sometime I indiscriminently display or refer to word in
// little endian storage format, or in integer format (ie MSB first).
int numbStrings = LE...
Finding all possible permutations of a given string in python
I have a string. I want to generate all permutations from that string, by changing the order of characters in it. For example, say:
...
What is /dev/null 2>&1?
...
& indicates a file descriptor. There are usually 3 file descriptors - standard input, output, and error.
– Testing123
Sep 15 '17 at 17:22
...
Trying to embed newline in a variable in bash [duplicate]
... Append
unset first_loop
done
echo -e "$p" # Use -e
Avoid extra leading newline
var="a b c"
first_loop=1
for i in $var
do
(( $first_loop )) && # "((...))" is bash specific
p="$i" || # First -> Set
p="$p\n$i" # After -> Append
unset ...
HTTP headers in Websockets client API
...sses this ticket during WebSocket connection setup either in the URL/query string, in the protocol field, or required as the first message after the connection is established. The server then only allows the connection to continue if the ticket is valid (exists, has not been already used, client IP ...