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App Inventor 2 如何下载/保存网络图片？ · App Inventor 2 中文网
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App Inventor 2 如何下载/保存网络图片？
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首先，需要使用 Web客户端 组件，需要和网络url进行数据交互的场景就要考虑使用它，Web客户端 组件在...
Why is Python running my module when I import it, and how do I stop it?
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There was a Python enhancement proposal PEP 299 which aimed to replace if __name__ == '__main__': idiom with def __main__:, but it was rejected. It's still a good read to know what to keep in mind when using if __name__ = '__main__':.
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使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...沉浸式全景图，另一个添加了 3-D 建模。我们提供了可供下载和试用的演示 APK 文件，以及您可以用作演示变体起点的 App Inventor 项目 (aia) 文件。演示的核心是一个用 Java 编写的辅助应用程序，用于管理与 Cardboard 库的交互。具有...
Fling gesture detection on grid layout
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I slightly modified and repaired solution from Thomas Fankhauser
Whole system consists from two files, SwipeInterface and ActivitySwipeDetector
SwipeInterface.java
import android.view.View;
public interface SwipeInterface {
public void bo...
App Inventor 2 中文网 · 项目指南
...帮助”菜单 -> AI伴侣信息，直接手机扫码安装到手机 或 下载AI伴侣到电脑并拖动到商业模拟器安装。 注：手机和电脑必须在同一局域网内，原理是电脑端启动WEB服务器，手机AI伴侣与WEB通信；电脑连手机热...
Why can't variables be declared in a switch statement?
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edited Apr 19 at 17:02
Arsen Khachaturyan
5,90933 gold badges3232 silver badges3434 bronze badges
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搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...p /data/mongodbtest
#进入mongodb文件夹
cd /data/mongodbtest
3、下载mongodb的安装程序包
wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.8.tgz
#解压下载的压缩包
tar xvzf mongodb-linux-x86_64-2.4.8.tgz
4、分别在每台机器建立mongos 、config ...
Best way to store time (hh:mm) in a database
...right the first time.
The better your initial design, the less costly the repairs will be later on.
I only say all this, because if I could go back in time then it is what I'd tell myself when I got there.
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What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
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(That's assuming you need the index, of course. If you can use the enhanced for loop instead, do so.)
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Oracle “(+)” Operator
...g some old SQL Statements for the purpose of documenting them and probably enhancing them.
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