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【基础入门班】【大作业】爱学习App - App Inventor 2 中文网 - 清泛IT社区...

方向1:实用的学习App 练习模式: 英中模式:随机出一个英语单词,答案隐藏,有按钮可以查看答案。可以切换上一、下一题。 中英模式:同上,题面是中文。自己不确定的题目,可一键收藏,随后可以专门练习收藏的题目...
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代码块超1.2w,编译apk报错 - 用户反馈 - 清泛IT社区,为创新赋能!

代码块超1.2w,编译apk报错 直接保存,http头300多K 编译,生成yail,头1.2M
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安全工具将程序标记为病毒 - App应用开发 - 清泛IT社区,为创新赋能!

...都是纯粹计算。详见这个帖子:https://bbs.tsingfun.com/thread-2138-1-1.html 要上架应用商店或不报病毒的话,需要申诉,不光是AppInventor编译出来的App,原生开发的App也是需要申诉的。申诉了,但回复是不通过,尊敬的开发者: 非...
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显示1小时的倒计时代码怎么做 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...考了显示60秒倒计时步骤,制作了一个程序,倒计时超过1分钟以上,依然是以秒倒计时,看起来倒计时数字很大。现在想实现1小时的倒计时,倒计时显示“时:分:秒”这样的显示方式。 例如:00:59:58    00:59:57  ...
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Is there any way to put malicious code into a regular expression?

... 216 Denial‐of‐Service Concerns The most common concern with regexes is a denial‐of‐service...
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Making a private method public to unit test it…good idea?

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Difference between GeoJSON and TopoJSON

... 146 If you care about file size or topology, then use TopoJSON. If you don’t care about either, ...
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PHP Fatal error: Call to undefined function json_decode()

... Using Ubuntu? Short answer: sudo apt-get install php7.2-json (or php7.1-json or php5-json depending on the PHP version you're running) Then of course make sure you restart Apache: sudo service apache2 restart Or if you are using PHP-FPM: sudo service php7.2-fpm restart (Or php7.1-fpm or...
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Is there a read-only generic dictionary available in .NET?

... 15 Answers 15 Active ...
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Saving grid.arrange() plot to file

... 147 grid.arrange draws directly on a device. arrangeGrob, on the other hand, doesn't draw anything...