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App Inventor 2 列表代码块 · App Inventor 2 中文网
...表元素，将列表缩减为单个值。
如果列表为空，则返回初始结果。 否则，该函数首先应用于初始结果和第一个列表项，然后应用于累积结果和下一个列表项。
这一直持续到列表末尾。
此处 是有关如何使用缩减列表块的教程...
How do I increase the scrollback buffer in a running screen session?
Lets say I have a currently running screen session I am interacting with through putty. I've realized that the scrollback buffer is too small and would like to increase it without starting a new screen session.
...
Bootstrap 3 breakpoints and media queries
...obile First Method ==========*/
/* Custom, iPhone Retina */
@media only screen and (min-width : 320px) {
}
/* Extra Small Devices, Phones */
@media only screen and (min-width : 480px) {
}
/* Small Devices, Tablets */
@media only screen and (min-width : 768px) {
}
/* Medium Devices, Desktop...
What must I know to use GNU Screen properly? [closed]
I've just introduced a friend to GNU Screen and they're having a hard time getting used to it. That makes me think about the essential things he needs to know about the excellent Screen utility, the same things that you'd think worthwhile to teach someone, a beginner, from the ground up. What ar...
How to lock orientation during runtime
...ntation during runtime? For example I'd like to allow the user to lock the screen to landscape if the user currently in landscape and toggle the menu option.
...
What is the difference between “screen” and “only screen” in media queries?
What is the difference between screen and only screen in media queries?
5 Answers
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...icky issue in designing apps is making apps that look good on devices with screens of differing sizes. For example, apps designed for a given phone should also look good on tablets or phones with a different screen size. Making apps that have this property is called responsive design.
A common ap...
Change Screen Orientation programmatically using a Button
I think this is implementable since screen rotation behaviour can go up to the application level.
5 Answers
...
Bootstrap 3 Navbar Collapse
...It's currently set to "expand" @media (min-width: 768px) which is a "small screen" (ie. a tablet) by Bootstrap 3 terms.
@grid-float-breakpoint: @screen-tablet;
If you want to keep the collapsed a little longer you can adjust it like such:
@grid-float-breakpoint: @screen-desktop; (992px br...
从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...以看到，算法是被模块化的，通过1,2,3,4的过程进行方法调用。
程序代码：
public class UserCF {
final static int NEIGHBORHOOD_NUM = 2;
final static int RECOMMENDER_NUM = 3;
public static void main(String[] args) throws IOException, TasteException {
...