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App Inventor 2 实现上传文件到服务器全方案总结 · App Inventor 2 中文网
...下:
文件成功上传并写入服务端,参考结果如下:
php服务端代码参考:
python服务端参考:
from flask_restful import Api, Resource
from flask import Flask, request
app = Flask(__name__)
api = Api(app)
# 这边的类名是自己定义的
class receive_pic(...
App Inventor 2 FTP 上传下载全方案总结 · App Inventor 2 中文网
...收费的:$12,请自行研究)
地址:https://puravidaapps.com/ftp.php
FTPClient (收费的:$5,请自行研究)
地址:https://community.appinventor.mit.edu/t/paid-ftpclient-an-extension-to-communicate-to-remote-server-5-or-inr-350/23519
切...
这个墨绿色的标题栏可以换颜色吗? - App Inventor 2 中文网 - 清泛IT社区...
...
TaifunTools(免费,功能强):https://puravidaapps.com/tools.php
Device(功能多且复杂):https://community.appinventor.mit.edu/t/free-device-get-device-info/48411
StatusBarTools(简单易用,推荐):https://community.appinventor.mit.edu/t/statusbartools-extension-f...
App Inventor 2 列表显示框能否实现多选功能? - App Inventor 2 中文网 - ...
...现,不过是收费的,12美刀。
https://puravidaapps.com/combobox.php
请教一个有关WEB 客户端 1的问题 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!
...WEB 客户端 1 通过 URL将参数传输给下图中地址并调用一个PHP文件,但是出现了错误信息“ERROR 1101:unable to get a response with the specified url"
我直接通过浏览器传输,显示结果正确。借助WEB浏览框如下图所示那样,也获得正确结果。
...
App Inventor 2 QRCode 扩展:二维码扫描及生成方案都在这里 - App Invento...
1、QRCode 二维码扫码:
使用原生的“条码扫描器”组件:
2、二维码生成的方案:
html + js + Web浏览器 方案:https://puravidaapps.com/qr.php
QRCodeGenerator 拓展方案:https://community.appinventor.mi ... tor-extension/47908
View.setPadding accepts only in px, is there anyway to setPadding in dp?
... pixels for a specific DPI value: http://forum.xda-developers.com/showpost.php?p=6284958&postcount=31
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How do I check if a column is empty or null in MySQL?
...if there is something null, why is that so?
– noobie-php
Mar 17 '16 at 11:01
the NULLIF checks fieldname for the empty...
Java equivalent to C# extension methods
...ll more modern languages allow for some kind existing class extension: C#, php, objective-c, javascript. Java surely shows its age here. Imagine you want to write a JSONObject to disk. Do you call jsonobj.writeToDisk() or someunrelatedclass.writeToDisk(jsonobj) ?
– woens
...
How to place the ~/.composer/vendor/bin directory in your PATH?
...and it worked for me.
curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer
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