大约有 12,000 项符合查询结果（耗时：0.0393秒） [XML]
How do I check if an integer is even or odd? [closed]
...nness(object o)
{
if (o == null)
return Evenness.Unknown;
string foo = o.ToString();
if (String.IsNullOrEmpty(foo))
return Evenness.Unknown;
char bar = foo[foo.Length - 1];
switch (bar)
{
case '0':
case '2':
case '4':
case '6':
case '8':
retur...
What does curly brackets in the `var { … } = …` statements do?
...perties from objects into distinct variables.
Eg: Array Destructuring
var foo = ["one", "two", "three"];
//without destructuring
var one = foo[0];
var two = foo[1];
var three = foo[2];
// with destructuring
var[one,two,three] = foo
Eg: Object Destructuring
var o = {p: 42, q: true};
var ...
git pull while not in a git directory
...a different directory without leaving the current directory:
(cd ~/foo && git status)
git --git-dir=~/foo/.git --work-tree=~/foo status
GIT_DIR=~/foo/.git GIT_WORK_TREE=~/foo git status
(cd ../..; git grep foo)
for d in d1 d2 d3; do (cd $d && git svn rebase); done
...
Using sed and grep/egrep to search and replace
...d separator. This is important to match the -Z of egrep and to avoid being fooled by spaces and newlines in input filenames.
-l: use one line per command as parameter
sed: the stream editor
-i: replace the input file with the output without making a backup
-e: use the following argument as expres...
How do I return multiple values from a function in C?
... Tuple getPair() {
Tuple r = { 1, getString() };
return r;
}
void foo() {
struct Tuple t = getPair();
}
2: Use pointers to pass out values.
void getPair(int* a, string* b) {
// Check that these are not pointing to NULL
assert(a);
assert(b);
*a = 1;
*b = getString(...
Curious null-coalescing operator custom implicit conversion behaviour
... analysis but before code generation -- we reduce the expression
result = Foo() ?? y;
from the example above to the moral equivalent of:
A? temp = Foo();
result = temp.HasValue ?
new int?(A.op_implicit(Foo().Value)) :
y;
Clearly that is incorrect; the correct lowering is
result = te...
WinDbg基础资料（日本語） - IT优秀资料 - 清泛网 - 专注C/C++及内核技术
...ール有効性確認
背景：下記のモジュールと対応するPDB提供、デバッグ情報取得できるかどうかの確認
-AAA.exe
-BBB.dll
-CCC.dll
-DDD.dll
手順：
WinDbgの「Open Executable」メニューからdwtbt.exeを起動する、
dwtbt.exeの...
Add only non-whitespace changes
...is works
git stash && git stash apply && git diff -w > foo.patch && git checkout . && git apply foo.patch && rm foo.patch
I don't like the stashes, but I have run into a bug in git + cygwin where I lose changes, so to make sure that stuff went to the ref...
Create new user in MySQL and give it full access to one database
...mysql -e "SELECT 1"
or print statement from the standard input:
$ echo "FOO STATEMENT" | mysql
If you've got Access denied with above, specify -u (for user) and -p (for password) parameters, or for long-term access set your credentials in ~/.my.cnf, e.g.
[client]
user=root
password=root
Sh...
To ternary or not to ternary? [closed]
...subconscious rules I tend to follow are:
Only evaluate 1 expression - so foo = (bar > baz) ? true : false, but NOT foo = (bar > baz && lotto && someArray.Contains(someValue)) ? true : false
If I'm using it for display logic, e.g. <%= (foo) ? "Yes" : "No" %>
Only really ...