大约有 40,000 项符合查询结果（耗时：0.0619秒） [XML]
Implicit “Submit” after hitting Done on the keyboard at the last EditText
...s:
In your layout put/edit this:
<EditText
android:id="@+id/search_edit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text"
android:singleLine="true"
android:imeOptions="actionDone" />
In your activity put this (e. g. i...
Str_replace for multiple items
I remember doing this before, but can't find the code. I use str_replace to replace one character like this: str_replace(':', ' ', $string); but I want to replace all the following characters \/:*?"<>| , without doing a str_replace for each.
...
What is __pycache__?
... it to bytecode first (this is an oversimplification) and stores it in the __pycache__ folder. If you look in there you will find a bunch of files sharing the names of the .py files in your project's folder, only their extensions will be either .pyc or .pyo. These are bytecode-compiled and optimized...
C# Float expression: strange behavior when casting the result float to int
...
Look at the IL:
IL_0000: ldc.i4.s 3D // speed1 = 61
IL_0002: stloc.0
IL_0003: ldc.r4 00 00 78 42 // tmp = 62.0f
IL_0008: stloc.1
IL_0009: ldloc.1
IL_000A: conv.i4
IL_000B: stloc.2
The compiler reduces compile-...
How to declare a global variable in php?
...nstead of a global:
class MyTest
{
protected $a;
public function __construct($a)
{
$this->a = $a;
}
public function head()
{
echo $this->a;
}
public function footer()
{
echo $this->a;
}
}
$a = 'localhost';
$obj = new MyTes...
Can an AJAX response set a cookie?
...swered Jul 27 '10 at 4:46
this. __curious_geekthis. __curious_geek
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Is it possible to clone html element objects in JavaScript / JQuery?
...ipt using the cloneNode() method:
// Create a clone of element with id ddl_1:
let clone = document.querySelector('#ddl_1').cloneNode( true );
// Change the id attribute of the newly created element:
clone.setAttribute( 'id', newId );
// Append the newly created element on element p
document.quer...
Convert a list of data frames into one data frame
...
Use bind_rows() from the dplyr package:
bind_rows(list_of_dataframes, .id = "column_label")
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...
“static const” vs “#define” vs “enum”
...alternative.
If you really NEED to go with a macro (for example, you want __FILE__ or __LINE__), then you'd better name your macro VERY carefully: in its naming convention Boost recommends all upper-case, beginning by the name of the project (here BOOST_), while perusing the library you will notice...
Polymorphism in C++
...rtual Base& operator+=(int) = 0; };
struct X : Base
{
X(int n) : n_(n) { }
X& operator+=(int n) { n_ += n; return *this; }
int n_;
};
struct Y : Base
{
Y(double n) : n_(n) { }
Y& operator+=(int n) { n_ += n; return *this; }
double n_;
};
void f(Base& x) { x...