大约有 22,000 项符合查询结果（耗时：0.0228秒） [XML]
Regex Email validation
... address is valid, pass the email address to the
MailAddress.MailAddress(String) class constructor.
public bool IsValid(string emailaddress)
{
try
{
MailAddress m = new MailAddress(emailaddress);
return true;
}
catch (FormatException)
{
return false;
...
Allowed characters in Linux environment variable names
...
From The Open Group:
These strings have the form
name=value; names shall not contain
the character '='. For values to be
portable across systems conforming to
IEEE Std 1003.1-2001, the value shall
be composed of characters from the
portable...
How to get current time and date in C++?
...is question gives you exactly this. If you are in doubt about how to get a string from stream, or how to properly format a time_point<>, go ahead and ask another question or google after it.
– Tarc
Jul 7 '17 at 17:02
...
When should the volatile keyword be used in C#?
...t (40203Ch)]
00401045 call dword ptr [__imp_std::basic_ostream<char,std::char_traits<char> >::operator<< (402038h)]
}
0040104B xor eax,eax
0040104D pop ecx
0040104E ret
Looking at the output, the compiler has decided to use the ecx re...
How do I get the value of a textbox using jQuery?
...he value of the text box:
$("#txtEmail").val()
You can also use the val(string) method to set that value:
$("#txtEmail").val("something")
share
|
improve this answer
|
f...
Get list of passed arguments in Windows batch script (.bat)
...to a function %0 and also in %~0 contains the function name (or better the string that was used to call the function).
But with %~f0 you still can recall the filename.
@echo off
echo main %0, %~0, %~f0
call :myLabel+xyz
exit /b
:MYlabel
echo func %0, %~0, %~f0
exit /b
Output
main test.bat, test...
Do I need to disable NSLog before release Application?
...BUG_MODE
#define DLog( s, ... ) NSLog( @"<%p %@:(%d)> %@", self, [[NSString stringWithUTF8String:__FILE__] lastPathComponent], __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__] )
#else
#define DLog( s, ... )
#endif
Now instead of NSLog use DLog everywhere. When testing and debugging...
In PHP what does it mean by a function being binary-safe?
... function will work correctly when you pass it arbitrary binary data (i.e. strings containing non-ASCII bytes and/or null bytes).
For example, a non-binary-safe function might be based on a C function which expects null-terminated strings, so if the string contains a null character, the function wo...
What is your favorite C programming trick? [closed]
...re you can write "str[]" as the last member of a struct). you could make a string "object" like this:
struct X {
int len;
char str[1];
};
int n = strlen("hello world");
struct X *string = malloc(sizeof(struct X) + n);
strcpy(string->str, "hello world");
string->len = n;
here, we've...
C++ - passing references to std::shared_ptr or boost::shared_ptr
...a message somewhere. It may be a large message so rather than using a std::string that likely gets copied as it is passed around to multiple places, we use a shared_ptr to a string:
void send_message(std::shared_ptr<std::string> msg)
{
std::cout << (*msg.get()) << std::endl;
}...