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如何让初始化全局变量为自己输入的数值 - App Inventor 2 中文网 - 清泛IT...
如何让初始化全局变量为自己输入的数值有几个注意点：
1、只让输入数字，用属性控制，用户无法输入数字之外的内容：
2、当输入内容发生变化，则将用户输入内容给全局变量：
3、除法一定要判断除数非零：
出现...
Visual Studio hot keys change occasionally, specifically F6 vs Ctrl-Shift-B for building. WHY?
...oject. Suddenly some of my Visual Studio instances are wanting me to use Ctrl - Shift - B . It's not keyboard related - the actual text of the menu option changes from " F6 " to " Ctrl - Shift - B ".
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Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
I want to capture the Ctrl+C ( SIGINT ) signal sent from the console and print out some partial run totals.
10 Answers
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How can I toggle word wrap in Visual Studio?
...d-wrap-in-the-editor
When viewing a document: Edit / Advanced / Word Wrap (Ctrl+E, Ctrl+W)
General settings: Tools / Options / Text Editor / All Languages / Word wrap
Or search for 'word wrap' in the Quick Launch box.
Known issues:
If you're familiar with word wrap in Notepad++, Sublime Text, or V...
Eclipse Optimize Imports to Include Static Imports
... static imports. By having those as favorites, if I type "assertT" and hit Ctrl+Space, Eclipse offers up assertThat as a suggestion, and if I pick it, it will add the proper static import to the file.
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从网购到火车票，对比淘宝12306网为何如此烂？ - 大数据 & AI - 清泛网 - ...
...淘宝的交易是相对离散的，分散在成千上万的卖家当中，同时对同一商家同一商品的并发购买并不是特别高。因此在数据访问上不会有太大的锁同一数据的瓶颈，买火车票在这方面压力会更大，最主要的原因还是僧多粥少的。火...
How to force Chrome browser to reload .css file while debugging in Visual Studio?
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To force chrome to reaload css and js:
Windows option 1: CTRL + SHIFT + R
Windows option 2: SHIFT + F5
OS X: ⌘ + SHIFT + R
Updated as stated by @PaulSlocum in the comments (and many confirmed)
Original answer:
Chrome changed behavior. Ctrl + R will do it.
On OS X: ⌘...
Copying the GNU screen scrollback buffer to a file (extended hardcopy)
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To write the entire contents of the scrollback buffer to a file, type
Ctrl + A and :
to get to command mode, then
hardcopy -h <filename>
In older versions of screen, if you just do hardcopy -h, it just writes to the file -h. This was fixed in version 4.2.0, so hardcopy -h writes to har...
How to modify the keyboard shortcuts in Eclipse IDE?
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Useful shortcuts : Ctrl + Shift + L for the list of currently available shortcuts, and hit Ctrl + Shift + L again to show the shortcut preference window.
– krookedking
May 6 '11 at 13:10
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Shortcut for changing font size
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You'll probably find these shortcuts useful:
Ctrl+Shift+. to zoom in.
Ctrl+Shift+, to zoom out.
Those characters are period and comma, respectively.
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