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App Inventor 2数据存储组件之：微数据库，本地存储数据App下次启动可共享...
...储一般分为两大类：本地 和 网络，本地一般是数据文件的形式存储在手机上，本地App每次启动都可以共享读取，但是不同的手机之间不可以共享数据；如果需要多个手机之间共享获取或存储数据的话，那就需要用到网络数据库...
How to align a div to the top of its parent but keeping its inline-block behaviour?
...
ninjageckoninjagecko
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怎么通过app inventor接收mqtt平台推送的长消息 - App Inventor 2 中文网 -...
我使用的MQTT平台是mind+的siot平台，发布的消息是图片的BASE64编码
你好，mqtt接收长消息目前是有什么问题吗？请提供详细的问题截图或报错信息。
接收的base64编码的图片，可以是使用拓展解码还原成图片：https://www.fun123.cn/ref...
How do I read / convert an InputStream into a String in Java?
... 29484 58968
test8 0.38 0.938 1.868 4.448 13.412 36.459 72.708
test4 2.362 3.609 5.573 12.769 40.74 81.415 159.864
test5 3.881 5.075 6.904 14.123 50.258 129.937 166.162
test9 2.237 3.493 5.422 11.977 45.98 89.336 177.39
test6 1.261 2.12 4.3...
What is the maximum length of a URL in different browsers?
...erver can
handle (see section 10.4.15).
That RFC has been obsoleted by RFC7230 which is a refresh of the HTTP/1.1 specification. It contains similar language, but also goes on to suggest this:
Various ad hoc limitations on request-line length are found in
practice. It is RECOMMENDED that all HTTP ...
Pointer vs. Reference
...
72
I really think you will benefit from establishing the following function calling coding guideli...
surface plots in matplotlib
...linewidth=0.1)
fig.colorbar(surf, shrink=0.5, aspect=5)
plt.savefig('teste.pdf')
plt.show()
If necessary you can pass vmin and vmax to define the colorbar range, e.g.
surf = ax.plot_trisurf(x, y, z, cmap=cm.jet, linewidth=0.1, vmin=0, vmax=2000)
Bonus Section
I was wondering how to do some i...
What is the concept of erasure in generics in Java?
...rces:
Oracle documentation
Wikipedia
Gilad Bracha's Java generics guide (PDF - highly recommended; link may need to change periodically)
Angelika Langer's Java Generics FAQ
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How to copy Java Collections list
...
Jon SkeetJon Skeet
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How to dismiss a Twitter Bootstrap popover by clicking outside?
...e: A slightly more robust solution: http://jsfiddle.net/mattdlockyer/C5GBU/72/
For buttons containing text only:
$('body').on('click', function (e) {
//did not click a popover toggle or popover
if ($(e.target).data('toggle') !== 'popover'
&& $(e.target).parents('.popover.in...