大约有 44,000 项符合查询结果（耗时：0.0490秒） [XML]
application/x-www-form-urlencoded or multipart/form-data?
...ueTwo
According to the specification:
[Reserved and] non-alphanumeric characters are replaced by `%HH', a percent sign and two hexadecimal digits representing the ASCII code of the character
That means that for each non-alphanumeric byte that exists in one of our values, it's going to take th...
Split List into Sublists with LINQ
...";
int count = 0;
// Group by three.
foreach (IEnumerable<char> g in s.Chunk(3))
{
// Print out the group.
Console.Write("Group: {0} - ", ++count);
// Print the items.
foreach (char c in g)
{
// Print the item.
...
What is the difference between quiet NaN and signaling NaN?
...trtod and 7.22.1.3 "The strtod, strtof, and strtold functions" says:
A character sequence NAN or NAN(n-char-sequence opt ) is interpreted as a quiet
NaN, if supported in the return type, else like a subject sequence part that does not have
the expected form; the meaning of the n-char sequenc...
How to write a large buffer into a binary file in C++, fast?
...stream("file.binary", std::ios::out | std::ios::binary);
myfile.write((char*)&data[0], bytes);
myfile.close();
auto endTime = std::chrono::high_resolution_clock::now();
return std::chrono::duration_cast<std::chrono::milliseconds>(endTime - startTime).count();
}
long long ...
Why should C++ programmers minimize use of 'new'?
...ts. std::string is a perfect example. This snippet:
int main ( int argc, char* argv[] )
{
std::string program(argv[0]);
}
actually allocates a variable amount of memory. The std::string object allocates memory using the heap and releases it in its destructor. In this case, you did not need ...
How can I repeat a character in Bash?
...seq prints one less than the number given, so that example will print 99 = characters.
– Camilo Martin
Jan 2 '14 at 16:10
13
...
How do malloc() and free() work?
...n limitations.
Why does your code crash:
The reason is that by writing 9 chars (don't forget the trailing null byte) into an area sized for 4 chars, you will probably overwrite the administrative-data stored for another chunk of memory that resides "behind" your chunk of data (since this data is m...
Are there other whitespace codes like   for half-spaces, em-spaces, en-spaces etc useful in HTML
...g space : &#160; or &nbsp;
narrow no-break space : &#8239; (no character reference available)
en space : &#8194; or &ensp;
em space : &#8195; or &emsp;
3-per-em space : &#8196; or &emsp13;
4-per-em space : &#8197; or &emsp14;
6-per-em space : &#8198; ...
What does the brk() system call do?
...;assert.h>
#include <unistd.h>
int main(void) {
void *b;
char *p, *end;
b = sbrk(0);
p = (char *)b;
end = p + 0x1000000;
brk(end);
while (p < end) {
*(p++) = 1;
}
brk(b);
return 0;
}
Tested on Ubuntu 18.04.
Virtual address space visual...
How to create a memory leak in Java?
...ring, if the string is a substring, the leak is even worse (the underlying char[] is also leaked) - in Java 7 substring also copies the char[], so the later doesn't apply; @Daniel, no needs for votes, though.
I'll concentrate on threads to show the danger of unmanaged threads mostly, don't wish t...