大约有 46,000 项符合查询结果（耗时：0.0718秒） [XML]
Does Dispose still get called when exception is thrown inside of a using statement?
...eflector decodes the IL generated by your code:
private static void Main(string[] args)
{
SqlConnection conn = new SqlConnection("...");
try
{
conn.Open();
DoStuff();
}
finally
{
if (conn != null)
{
conn.Dispose();
}
}...
Finding Number of Cores in Java
...tNumberOfCPUCores() {
OSValidator osValidator = new OSValidator();
String command = "";
if(osValidator.isMac()){
command = "sysctl -n machdep.cpu.core_count";
}else if(osValidator.isUnix()){
command = "lscpu";
}else if(osValidator.isWindows()){
command = "...
Javascript split regex question
...
Say your string is:
let str = `word1
word2;word3,word4,word5;word7
word8,word9;word10`;
You want to split the string by the following delimiters:
Colon
Semicolon
New line
You could split the string like this:
let rawElements =...
Suppress/ print without b' prefix for bytes in Python 3
...t that will print as wish. In particular, repr(b'\x01')[2:-1] returns the string \\x01, while decode() will return \x01 which does not work as one would wish with print(). To be even more explicit, print(repr(b'\x01')[2:-1]) will print \x01 while print(b'\x01'.decode()) will not print anything.
...
LINQ to read XML
...
Try this.
using System.Xml.Linq;
void Main()
{
StringBuilder result = new StringBuilder();
//Load xml
XDocument xdoc = XDocument.Load("data.xml");
//Run query
var lv1s = from lv1 in xdoc.Descendants("level1")
select new {
...
When should use Readonly and Get only properties
...t once during the construction of an object (in the constructor).
private string _name = "Foo"; // field for property Name;
private bool _enabled = false; // field for property Enabled;
public string Name{ // This is a readonly property.
get {
return _name;
}
}
public bool Enabled{ // T...
What is the best way to use a HashMap in C++?
...lude <cassert>
int main(int argc, char **argv)
{
std::map<std::string, int> m;
m["hello"] = 23;
// check if key is present
if (m.find("world") != m.end())
std::cout << "map contains key world!\n";
// retrieve
std::cout << m["hello"] << '\n';
std::map&...
What does a tilde in angle brackets mean when creating a Java generic class?
... 7 allows the diamond operator so this is/will be legal Java code:
Map<String, List<String>> map = new HashMap<>();
(but - no tilde with this syntax)
share
|
improve this answer...
What exactly is a Maven Snapshot and why do we need it?
...ing, then you should just release release candidates with specific version strings (-RC1, -RC2 or something like that).
– Joachim Sauer
Oct 11 '17 at 10:12
21
...
Recommendations of Python REST (web services) framework? [closed]
... expression is written once. Replace your someUsefulThing call with a long string, like paginate(request, Post.objects.filter(deleted=False, owner=request.user).order_by('comment_count')) and look at the code. I hope it will illustrate my point.
– temoto
Jul 13...