大约有 14,000 项符合查询结果(耗时:0.0332秒) [XML]

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AppInventor2 解析json数据技巧 - App应用开发 - 清泛IT社区,为创新赋能!

...bc19a9924473b86ff49d426cf06f" }复制代码要求:解析出每一项 value 数值。 技巧: [] 是列表,{} 是字典,用不同解析方法,查找元素方法也不一样。 拿出指定对象值 遍历所有对象列表:
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AppInventor2 文本和数字如何转换? - App应用开发 - 清泛IT社区,为创新赋能!

...ppInventor2 文本和数字如何转换? A:先来一个文本转数字情况: 定义一个变量赋初值 数字0,然后将文本设置给它,事实证明这时它自动变成了文本类型,而不再是数字。因此此方案行不通。 最彻底方案: [hide] 直接使...
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ble蓝牙怎么接收中文 - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

如题,用ble蓝牙扩展[color=rgba(0, 0, 0, 0.85)]StringsReceived,接收单片机发过来中文和字符串,字符串能正常显示在标签组件上,但是中文显示为乱码,请问我要怎么处理中文?? 英文能正常显示,中文乱码,那肯定就是字符集...
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507问题求助 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

各位大佬们帮我看看为什么我app会出现蓝牙无法连接问题,我是根据其他人逻辑设计做下来,但是我手机连接不上蓝牙模块,会显示507问题
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AppInventor2 如何实现屏幕截屏并将图片拷贝/分享? - App Inventor 2 中文...

...用法很简单,截屏完成后会触发事件,参数给出截屏图片路径,存储在 app 私有目录,通过手机文件管理器就可以查看。 app 私有目录路径参考: 将截图图片分享出去:社交应用,信息分享器 组件 类似文件分享...
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Best practices for styling HTML emails [closed]

... mean to add images as attachments, instead they should be included as base64-encoded strings to replace the url referenced in "normal" <img> tags, like so: <img alt="Embedded Image" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIA..."> – Timo ...
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Execution of Python code with -m option or not

...sys; print(sys.version)" > pdb.py python -m pdb 3.5.2 |Anaconda 4.1.1 (64-bit)| (default, Jul 5 2016, 11:41:13) [MSC v.1900 64 bit (AMD64)] Use the -I flag to lock this down for production environments (new in version 3.4): python -Im pdb usage: pdb.py [-c command] ... pyfile [arg] ... etc.....
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Modify Address Bar URL in AJAX App to Match Current State

...n you want to save the state, you serialize the object (using JSON and base64 encoding). You can then set the fragment of the href to this string. var encodedState = base64(json(state)); var newLocation = oldLocationWithoutFragment + "#" + encodedState; document.location = newLocation; // adds ne...
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Partly cherry-picking a commit with Git

... CascabelCascabel 398k6464 gold badges352352 silver badges307307 bronze badges ...
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Can't find the 'libpq-fe.h header when trying to install pg gem

... For me after run brew install postgressql i run ARCHFLAGS="-arch x86_64" gem install pg and works fine. – overallduka Oct 31 '14 at 17:05 5 ...