大约有 13,000 项符合查询结果（耗时：0.0324秒） [XML]
generating GUID without hyphen
... is it possible to create a GUID with both Upper and lowercase chars along with numbers???
– Harish Kumar
Jan 16 '12 at 8:55
7
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Tab space instead of multiple non-breaking spaces (“nbsp”)?
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Was looking for this when building a large concat() query in MySQL for use in a Crystal Report. the ASCII (	) did the job perfectly!
– MikeMighty
Mar 9 '18 at 14:40
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Getting a File's MD5 Checksum in Java
... byte data[] = org.apache.commons.codec.digest.DigestUtils.md5(fis); char md5Chars[] = Hex.encodeHex(data); String md5 = String.valueOf(md5Chars);`
– Dmitry_L
Jul 17 '13 at 10:45
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How do you iterate through every file/directory recursively in standard C++?
...Find = INVALID_HANDLE_VALUE;
}
return true;
}
int main(int argc, char* argv[])
{
vector<wstring> files;
if (ListFiles(L"F:\\cvsrepos", L"*", files)) {
for (vector<wstring>::iterator it = files.begin();
it != files.end();
++it) {
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Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...应表达式 a ^ b
__unm(a) 对应表达式 -a
__concat(a, b) 对应表达式 a .. b
__len(a) 对应表达式 #a
__eq(a, b) 对应表达式 a == b
__lt(a, b) 对应表达式 a < b
__le(a, b...
Creating C macro with ## and __LINE__ (token concatenation with positioning macro)
...or is expected to for decades. The prime example is compiling X11, macro "Concat3" is broken, it's result is now MISNAMED C Identifier, which of course fails to build. and i'm beginning to thing build fails are their profession.
I think the answer here is "new C that breaks standards is bad C", t...
Where is PATH_MAX defined in Linux?
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Its in linux/limits.h.
#define PATH_MAX 4096 /* # chars in a path name including nul */
#include <linux/limits.h>
char current_path[PATH_MAX];
PATH_MAX has some flaws as mentioned in this blog (thanks paulsm4)
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How to read from a file or STDIN in Bash?
...ter to add -r to your read command, so that it doesn't accidentally eat \ chars; use while IFS= read -r line to preserve leading and trailing whitespace.
– mklement0
Feb 28 '15 at 23:34
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What does void* mean and how to use it?
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Before void pointers were available "char *" was used instead. But void is better as it cannot actually be used to alter anything directly.
– user50619
Jun 4 '19 at 13:08
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Java executors: how to be notified, without blocking, when a task completes?
... {
sleep(7000, TimeUnit.MILLISECONDS); /* Pretend to be busy... */
char[] str = new char[5];
ThreadLocalRandom current = ThreadLocalRandom.current();
for (int idx = 0; idx < str.length; ++idx)
str[idx] = (char) ('A' + current.nextInt(26));
String msg = new String(str);
...