大约有 5,000 项符合查询结果（耗时：0.0147秒） [XML]
Zoom in on a point (using scale and translate)
... = width;
var visibleHeight = height;
function draw(){
// Clear screen to white.
context.fillStyle = "white";
context.fillRect(originx,originy,800/scale,600/scale);
// Draw the black square.
context.fillStyle = "black";
context.fillRect(50,50,100,100);
}
// Draw...
实时开发、测试和调试工具 · App Inventor 2 中文网
...块，你可以看到这些。 这将打开一个菜单，如下所示，调用过程 moveMole 的块：
并非所有区块都会在菜单中提供相同的选择。
你可以使用 Do It 执行块的操作。 在调试像 MoleMash 这样的程序时，你可以选择“MoveMole”中的“Do It...
Emacs - Multiple columns one buffer
...e to use some of the acres of horizontal space I have and see more code on-screen at one time. Is there a method for getting Emacs (or indeed another editor) to show me multiple columns all pointing to the same buffer?
...
Using vagrant to run virtual machines with desktop environment
...rtualBox guest tools before starting the GUI. This will give you a healthy screen resolution, integrated mouse, etc.
$ sudo apt-get install -y xfce4 virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11
$ sudo VBoxClient-all
Only now should you start the GUI as the vagrant user, with $ s...
What are the dark corners of Vim your mom never told you about? [closed]
...will reverse casing of entire word
Ctrl+u / Ctrl+d scroll the page half-a-screen up or down. This seems to be more useful than the usual full-screen paging as it makes it easier to see how the two screens relate. For those who still want to scroll entire screen at a time there's Ctrl+f for Forward ...
How to print from GitHub
If I want to print a markdown file from GitHub as it appears on screen, for example:
https://github.com/RestKit/RestKit/blob/master/Docs/Object%20Mapping.md
...
How to write iOS app purely in C
...+alloc and -initWithFrame: our window here, so that we can have it show on screen (eventually).
// this entire method is the objc-runtime based version of the standard View-Based application's launch code, so nothing here really should surprise you.
// one thing important to note, though is ...
How to redirect output to a file and stdout
... stdout streams.
tee outfile takes the stream it gets and writes it to the screen and to the file "outfile".
This is probably what most people are looking for. The likely situation is some program or script is working hard for a long time and producing a lot of output. The user wants to check it pe...
Why is the Windows cmd.exe limited to 80 characters wide?
... click the title bar, select properties, and in the "Layout" tab alter the screen buffer size (line width and scrollback) and the window size (viewport size). If you started cmd from a shortcut, you can save these settings for future sessions.
...
Forcing a WPF tooltip to stay on the screen
I have a tooltip for a Label and I want it to stay open until the user
moves the mouse to a different control.
10 Answers
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