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[科普] __MACOSX是什么文件夹？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...aData”，这样做的目的是为了方便其它的Mac用户使用(就像Windows 会在图片目录下加入的Thumbs.db以方便显示预览图一样 )。
这些MetaData产生的文件就是”__MACOSX”，本身这些文件在Mac系统上是隐藏属性的，也的确方便了用户的操...
编辑你的应用（复制和粘贴） · App Inventor 2 中文网
...它们。
从 nb182 版本开始，你可以通过按住平台特定键（Windows/Linux 上的 Ctrl，macOS 上的 Command）并单击其他组件来选择多个组件，此功能有时在 App Inventor 中称为多选。
当你选择多个组件时，属性面板将更新为仅显示所选组件...
Install Windows Service created in Visual Studio
When I create a new Windows Service in Visual Studio 2010, I get the message stating to use InstallUtil and net start to run the service.
...
How do I fix blurry text in my HTML5 canvas?
...var ctx = document.createElement("canvas").getContext("2d"),
dpr = window.devicePixelRatio || 1,
bsr = ctx.webkitBackingStorePixelRatio ||
ctx.mozBackingStorePixelRatio ||
ctx.msBackingStorePixelRatio ||
ctx.oBackingStorePixelRatio ||
...
How do I use Notepad++ (or other) with msysgit?
...r script.
As I explain in "How can I set up an editor to work with Git on Windows?", I prefer a wrapper, as it is easier to try and switch editors, or change the path of one editor, without having to register said change with a git config again.
But that is just me.
Additional information: the f...
How to execute a JavaScript function when I have its name as a string
...been mentioned, using something like this would be the best way to do it:
window["functionName"](arguments);
That, however, will not work with a namespace'd function:
window["My.Namespace.functionName"](arguments); // fail
This is how you would do that:
window["My"]["Namespace"]["functionName...
How to hide action bar before activity is created, and then show it again?
...
Setting android:windowActionBar="false" truly disables the ActionBar but then, as you say, getActionBar(); returns null.
This is solved by:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWin...
How to resize the iPhone/iPad Simulator?
...
Simulator scale options from Xcode Menu:
Xcode 9.1+:
Menubar ▶ Window ▶ "Here, options available change simulator scale" (Physical Size & Pixel Accurate)
Pixel Accurate: Resizes your simulator to actual (Physical) device's pixels, if your mac system display screen size (pixel) ...
Warn user before leaving web page with unsaved changes
... this by handling the beforeunload event and returning a non-null string:
window.addEventListener("beforeunload", function (e) {
var confirmationMessage = 'It looks like you have been editing something. '
+ 'If you leave before saving, your changes will be lost.';
...
What does 'wb' mean in this code, using Python?
... you supposed to read that jpg file you need to use 'rb'
More info
On Windows, 'b' appended to the mode
opens the file in binary mode, so
there are also modes like 'rb', 'wb',
and 'r+b'. Python on Windows makes a
distinction between text and binary
files; the end-of-line characters in...