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MIT官方已升级至2.73版本，中文网待测试并升级相关特性 - App Inventor 2 ...
... Android Companion 应用及其底层框架。新版本 2.73 现已可从 Google Play 商店和 ai2.appinventor.mit.edu（版本 2.73u）直接下载。
更改：
为 ListView 组件实现“提示”属性，并全面提高其性能。
在 ChatBot 组件中添加下拉菜单，用于选择...
MIT已升级2.74版本，中文网已完成升级 - App Inventor 2 中文网 - 清泛IT社...
...提示
向菜单、调色板和设计视图添加键盘导航
更新至 Google Blockly 版本 10
按住 Shift 并拖动以选择多个块
当值被拖近并且没有空闲插槽时，文本等块会自动合并并展开列表
将块拖到边缘时工作区会自动滚动
新的渲染引擎
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【教学】AppInventor2人工智能应用：Personal Audio Classifier 自行训练神...
...文件，這概念都是來自於 [color=var(--fs-experimental-link-color)]Google Teachable Machine，並使用 TensorFlow.js (MobileNet) 來訓練網路，但 TM還可以用 poseNet 來偵測人體姿勢，希望 App Inventor 也可以支援（敲碗~）。哪些手機可以用： MIT A...
How do I jump out of a foreach loop in C#?
...nswer to your question is literally in your question! By the way, a simple Google search could have given you the answer.
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How do I select an element with its name attribute in jQuery? [duplicate]
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Resource:
http://www.electrictoolbox.com/jquery-form-elements-by-name/ (google search: get element by name jQuery - first result)
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OAuth 2.0: Benefits and use cases — why?
...at way all sniffable HTTP accesses are made with a token that will expire. Google is using a 5 minute expiration on their OAuth 2 APIs.
So aside from the refresh tokens, OAuth 2 simplifies all the communications between the client, server, and content provider. And the refresh tokens only exist to ...
How can I check if a key exists in a dictionary? [duplicate]
...thing more than a condescending link to the documentation. It is sad that Google ranks this so highly.
– cstrutton
Jul 12 '17 at 0:59
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How to fix Git error: object file is empty?
...61Jq:~/workspace/mcmc-chapter$ git reflog
fatal: bad object HEAD
Step 6: Google. Find this. Manually get the last two lines of the reflog:
nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ tail -n 2 .git/logs/refs/heads/master
f2d4c4868ec7719317a8fce9dc18c4f2e00ede04 9f0abf890b113a287e10d56b66...
Is there a MySQL command to convert a string to lowercase?
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Did you try looking it up? Google, manual...
http://dev.mysql.com/doc/refman/5.1/en/string-functions.html#function_lower
mysql> SELECT LOWER('QUADRATICALLY');
-> 'quadratically'
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A simple example for someone who wants to understand Dynamic Programming [closed]
... subproblems, though I think there's more to it than that.
There are many Google Code Jam problems such that solutions require dynamic programming to be efficient. Examples:
Welcome to Code Jam (moderate)
Cheating a Boolean Tree (moderate)
PermRLE (hard)
Note that each of the Code Jam practice...