大约有 41,000 项符合查询结果（耗时：0.0171秒） [XML]
How to profile a bash shell script slow startup?
...e set -x later and set +x earlier (or bracket several sections of interest selectively).
Although it's not as fine-grained as GNU date's nanoseconds, Bash 5 includes a variable which gives the time in microseconds. Using it saves you from spawning an external executable for every line and works on ...
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
...puts简单读写，一般用于处理文本文件。
int main(int argc, char* argv[])
{
FILE *fp = NULL;
/*打开文件*/
if((fp = fopen("test.txt", "w+")) == NULL)
{
printf("文件打开出错，请检查文件是否存在！\n");
return -1;
}
else
{
printf("文件已经...
lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...te(void) ;
//加载lua脚本文件
int luaL_loadfile(lua_State *L, const char *filename);
lua和c/c++的数据交互通过"栈"进行 ,操作数据时，首先将数据拷贝到"栈"上，然后获取数据，栈中的每个数据通过索引值进行定位，索引值为正时表示相对于...
MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
...tification handler code here
""m_button.EnableWindow(TRUE);
}
// RadioSelect Button的点击响应函数
void CPrintDlg::OnRadioSelect()
{
""// TODO: Add your control notification handler code here
""m_button.EnableWindow(FALSE);
}
也可以通过一个Check Button的点击来改变，...
Convert a char to upper case using regular expressions (EditPad Pro)
...ssion in hope that I will be able to replace every match (that is just one char) to upper case char. I am using EditPad Pro (however I am willing to use any other tool that would allow me to do this, as long as it is free to try, since I only need to do this once).
...
Is there a limit to the length of a GET request? [duplicate]
... as there is no specified limit in the RFC. It'd be safe to use up to 2000 characters (IE's limit.) If you are anywhere near this length, you should make sure you really need URIs that long, maybe an alternative design could get around that.
URIs should be readable, even when used to send data.
...
Parameterize an SQL IN clause
...
Here's a quick-and-dirty technique I have used:
SELECT * FROM Tags
WHERE '|ruby|rails|scruffy|rubyonrails|'
LIKE '%|' + Name + '|%'
So here's the C# code:
string[] tags = new string[] { "ruby", "rails", "scruffy", "rubyonrails" };
const string cmdText = "select * from t...
Make first letter of a string upper case (with maximum performance)
...C# 8
public static class StringExtensions
{
public static string FirstCharToUpper(this string input) =>
input switch
{
null => throw new ArgumentNullException(nameof(input)),
"" => throw new ArgumentException($"{nameof(input)} cannot be empty", n...
Malloc vs new — different padding
...n address aligned for any standard type no larger than n, and if T isn't a character type then new T[n] is only required to return an address aligned for T.
But this is only relevant when you're playing implementation-specific tricks like using the bottom few bits of a pointer to store flags, or ot...
Regular expression to match a word or its prefix
...
Because the person who posted the question selected the first answer that came in, and didn't bother to switch to mine when my vastly superior answer came in later. You can ask the questioner via comment under the question to change their answer selection to this one...