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App Inventor 2中对IOS系统移动设备的适配问题 - App Inventor 2 中文网 - ...
有适用于iOS系统移动设备的AI伴侣吗iOS版本的AI伴侣需要在苹果应用商店搜索“App Inventor”下载，目前最新版本2.64.3，版本一直都比安卓老一些。测试的话，有些场景兼容性还是不太好。
App Inventor 2 复制屏幕功能，误删组件的“后悔药”，界面设计更便捷 - Ap...
...新上线，中文网独有（MIT没有此功能），可以复制屏幕中的普通组件、图片、附件、拓展、代码块。更多升级详情可查看发布日志。下面演示一下屏幕的复制效果：1、Screen1屏幕上有若干组件、及一个SQLite拓展：2、点击工具栏上...
Some font-size's rendered larger on Safari (iPhone)
...a (anything that is to be printed on paper, etc.). One point is equal to 1/72 of an inch. Points are much like pixels, in that they are fixed-size units and cannot scale in size.
Percent (%): The percent unit is much like the “em” unit, save for a few fundamental differences. First and foremost,...
import module from string variable
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importlib.import_module is what you are looking for. It returns the imported module. (Only avai...
Given a number, find the next higher number which has the exact same set of digits as the original n
...eRaja - Danny PflughoeftBlueRaja - Danny Pflughoeft
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Returning 'IList' vs 'ICollection' vs 'Collection'
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Generally you should return a type that is as general as possible, i.e. one that knows just eno...
IllegalArgumentException or NullPointerException for a null parameter? [closed]
...t NullPointerException is the correct exception: stackoverflow.com/a/8160/372926 ; stackoverflow.com/a/8196334/372926 ; and stackoverflow.com/a/6358/372926.
– SamStephens
Feb 6 '14 at 23:09
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输入框输入内容为空的提示编写求助 - App Inventor 2 中文网 - 清泛IT社区...
要如何编写实现就是如果三个文本输入框没有进行填写的话，对话框会进行提示呢（要对文本框的填写情况进行一个是否填写的判断，但是自己尝试了一下弄不出来）
就一个非空判断，参考如下：
App Inventor 2 发表于 ...
Error 1801 : Security Error Receiving Blocks from Browser. - App Inven...
...m Browser.
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[hide]App Inventor 对配套应用的每次调用都使用哈希函数（特别是 HMAC）进行签名，并且配套应用在执行代码之前会验证该哈希，以防止可能试图让您的手机执行恶意代码的恶意应用。当配套应用尝试...
python: How do I know what type of exception occurred?
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Get the name of the class that exception object belongs:
e.__class__.__name__
and using prin...