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AI伴侣现已正式升级为“AppInventor学院”App！ - App Inventor 2 中文网 -...
...有功能，另外添加或集成了AI问答、在线视频课程及移动社区等功能。这款App也将承载大家对于AppInventor能打造什么样的App效果的一个期待，后续也会陆续上架各大应用市场。下载地址：帮助菜单 -> AI伴侣信息。部分界面截图...
App上架国内应用市场，腾讯管家报病毒的解决历程 - App Inventor 2 中文网 ...
...了一下，这个是通病，很多人遇到了，并反馈到了MIT英文社区，官方权威回答是appinventor及代码没有问题，需要向腾讯申诉误报，白名单放行等。、
言下之意就是：不是appinventor的问题，是腾讯的审核规则问题。
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“AppInventor学院”App国内各大市场上架之旅 - App应用开发 - 清泛IT社区...
...方都必须 勾选隐私政策。
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华为：
有社区功能的要申请安全认证。
原生WebView套了网页，input file 失效导致上传功能无效。
ImagePicker 图像选择器如何一次选择多张图片？ - App Inventor 2 中文网 -...
...有关，可能有的手机可以选择多张，纯猜测未验证。英文社区也有相关问题，目前没有得到正面回答，大概只有通过拓展解决。
拓展已上线，用法很简单：
拓展下载地址：https://www.fun123.cn/reference/extensions/MultiImagePicker.htm...
How to determine a Python variable's type?
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yes, just using import email no classes of my own invention.
– Jasen
Aug 1 '18 at 23:38
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Unique constraint that allows empty values in MySQL
...he codes are unique, but some products simply doesn't have a code. I can't invent codes because those are providers codes.
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Django fix Admin plural
... a model somewhere in your own code you'll use this property instead of re-inventing the wheel.
– cibyr
Mar 10 '14 at 3:33
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Propagate all arguments in a bash shell script
...ere is historical progression here; $* did not work as designed, so $@ was invented to replace it; but the quoting rules being what they are, the double quotes around it are still required (or it will revert to the broken $* semantics).
– tripleee
Dec 15 '15 at...
How can I have a newline in a string in sh?
...ho's problems were the reason why the Unix Standardization process finally invented the printf utility, doing away with all the problems.
So to get a newline in a string:
FOO="hello
world"
BAR=$(printf "hello\nworld\n") # Alternative; note: final newline is deleted
printf '<%s>\n' "$FOO"
pri...