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扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...wo lines formed by the fingers.
The angles we use are in degrees and they range from -360 to 360 degrees. The sign of the angle indicates the direction of rotation. A positive angle means clockwise rotation, and a negative angle means counter-clockwise rotation.
We use the MotionEvent class in And...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...wo lines formed by the fingers.
The angles we use are in degrees and they range from -360 to 360 degrees. The sign of the angle indicates the direction of rotation. A positive angle means clockwise rotation, and a negative angle means counter-clockwise rotation.
We use the MotionEvent class in And...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...wo lines formed by the fingers.
The angles we use are in degrees and they range from -360 to 360 degrees. The sign of the angle indicates the direction of rotation. A positive angle means clockwise rotation, and a negative angle means counter-clockwise rotation.
We use the MotionEvent class in And...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...wo lines formed by the fingers.
The angles we use are in degrees and they range from -360 to 360 degrees. The sign of the angle indicates the direction of rotation. A positive angle means clockwise rotation, and a negative angle means counter-clockwise rotation.
We use the MotionEvent class in And...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...wo lines formed by the fingers.
The angles we use are in degrees and they range from -360 to 360 degrees. The sign of the angle indicates the direction of rotation. A positive angle means clockwise rotation, and a negative angle means counter-clockwise rotation.
We use the MotionEvent class in And...
How do SO_REUSEADDR and SO_REUSEPORT differ?
... specific port itself in that case (usually from a predefined, OS specific range of source ports). A similar wildcard exists for the source address, which can be "any address" (0.0.0.0 in case of IPv4 and :: in case of IPv6). Unlike in case of ports, a socket can really be bound to "any address" whi...
Efficiently replace all accented characters in a string?
... as e + ̀.
Using a regex character class to match the U+0300 → U+036F range, it is now trivial to globally get rid of the diacritics, which the Unicode standard conveniently groups as the Combining Diacritical Marks Unicode block.
See comment for performance testing.
Alternatively,...
What characters are valid for JavaScript variable names?
... screwed up all the time. Keep your public identifiers in the 32-126 ASCII range where it's safe.
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What is a NullReferenceException, and how do I fix it?
... // There is no Dictionary to perform the lookup.
Range Variable (Indirect/Deferred)
public class Person
{
public string Name { get; set; }
}
var people = new List<Person>();
people.Add(null);
var names = from p in people select p.Name;
string firstName = names.Fi...
Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...nc(i);
if (c and $C0) <> $80 then Exit; // malformed trail byte or out of range char
if i > SourceBytes then Exit; // incomplete multibyte char
wc := (wc shl 6) or (c and $3F);
end;
c := Byte(Source[i]);
Inc(i);
if (c and $C0) <> $80 then Exit; // malformed trail byte
Dest[count] := WideCh...