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Only mkdir if it does not exist [duplicate]
...ld already be in the coder's option how he/she would handle the situation. One could send a message to the user and ask for input, abort, or do other things if [[ -e dir && ! -d dir ]] is valid.
– konsolebox
Sep 4 '13 at 22:17
...
Regex that accepts only numbers (0-9) and NO characters [duplicate]
... a $ to the end:
^[0-9]*$
This accepts any number of digits, including none. To accept one or more digits, change the * to +. To accept exactly one digit, just remove the *.
UPDATE: You mixed up the arguments to IsMatch. The pattern should be the second argument, not the first:
if (!System.Text...
Generating a Random Number between 1 and 10 Java [duplicate]
... This means that you will get numbers from 0 to 9 in your case. So you've done everything correctly by adding one to that number.
Generally speaking, if you need to generate numbers from min to max (including both), you write
random.nextInt(max - min + 1) + min
...
AngularJS app.run() documentation?
...unctions (again, if found)
Here's a simple demo where you can watch each one executing (and experiment if you'd like).
From Angular's module docs:
Run blocks - get executed after the injector is created and are
used to kickstart the
application. Only instances and constants can be inj...
Apply style to parent if it has child with css [duplicate]
...
See the list of CSS4 Selectors here.
As an alternative, with jQuery, a one-liner you could make use of would be this:
$('ul li:has(ul.sub)').addClass('has_sub');
You could then go ahead and style the li.has_sub in your CSS.
...
AltGr key not working, instead i have to use Ctrl+AltGr [closed]
...d the problem on my Desktop : Alt+Enter and Ctrl+Enter (i don't know which one solved the problem though)
I tried to reproduce the problem, but i couldn't... but i'm almost sure it's one of the key combinations described in the question above (since i experienced this problem several times)
So it ...
std::find，std::find_if使用小结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...argv[], TCHAR* envp[])
{
std::vector<std::string> vec;
vec.push_back("one");
vec.push_back("two");
vec.push_back("three");
//查找
std::vector<std::string>::iterator it = std::find(vec.begin(), vec.end(), "two");
if (it != vec.end())
printf("find:%s\n", it->c_str());
else
pri...
[源码实例] c/c++获取网卡mac地址 - C/C++ - 清泛网 - 专注C/C++及内核技术
...UFFER NameBuff [30];
}ASTAT, * PASTAT;
ASTAT Adapter;
void getmac_one (int lana_num,char *pMicID)
{
NCB ncb;
UCHAR uRetCode;
memset( &ncb, 0, sizeof(ncb) );
ncb.ncb_command = NCBRESET;
ncb.ncb_lana_num = lana_num; // 指定网卡号
// 首先对选定的网卡发送一...
auto_ptr is not dereferencable - C/C++ - 清泛网 - 专注C/C++及内核技术
...错误代码示例： Example : Transferring ownership from one auto_ptr to anothervoi...错误如下图所示：
错误代码示例：
// Example : Transferring ownership from
// one auto_ptr to another
void testAutoPtr6()
{
std::auto_ptr<TC> pt1(new TC);
std:...
Linux平台编译curl：checking run-time libs availability... failed - 更...
...如下， checking run-time libs availability failed configure: error: one or more libs av 64位编译
1）configure过程失败如下，
checking run-time libs availability... failed
configure: error: one or more libs available at link-time are not available run-time....