大约有 43,000 项符合查询结果(耗时:0.0342秒) [XML]

https://bbs.tsingfun.com/thread-1729-1-1.html 

Run time error "Stack size 8188kb" 报错原理及解决方法 - App ...

... 程序栈的大小,8M还算大的,没有必要修改,不解决根本问题。 本质原因是把超过8M的内容放入了列表,解决思路是二进制切片处理,不要一次性处理那么大的数据。 报错核心原因就是列表中插入数据超过了8M。 -----------...
https://bbs.tsingfun.com/thread-1979-1-1.html 

最大装载数不显示计算数值 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...数输出+(高数输出×横数输出)÷2=最大装载数 出现问题不显示计算数字代码块没有问题,经过测试是能够正确计算出除法结果的,测试时主要被除数要大于除数,否则计算结果0.xxx 向下取整就是0,干扰测试结果。。。之后...
https://bbs.tsingfun.com/thread-2212-1-1.html 

AppInventor2 vs Android Studio - App应用开发 - 清泛IT社区,为创新赋能!

有同学问: 如果用 AppInventor2 设计好了 回头出现问题用这个软件解决不了 是不是能用 Android Studio来重新编译呢? 不能,不同的源码体系。但是android studio工具可以调查部分app的通用问题,最终的apk他们是一致的,只是源码形...
https://bbs.tsingfun.com/thread-2229-1-1.html 

无法打包成apk - App应用开发 - 清泛IT社区,为创新赋能!

...报错信息截图看一下 这个是图片 我也有时会出现同样的问题这个问题已经解决了,通过将部分功能移出,删减单页面代码数量,已经能够完成编译,并运行。核心原因:源码中逻辑问题,代码块超限导致yail保存不了。中文网...
https://bbs.tsingfun.com/thread-2264-1-1.html 

BLE connection error “Connection status was set to OS code 133” - 创...

https://stackoverflow.com/questi ... droid-bluetooth-ble 问题原来是设备试图发送大于 MTU 大小的数据包,Android 默认为 23,至少在我测试的特定设备上是这样。 请求更大的 MTU 大小确实解决了问题。 但是,如果错误代码可以明确指出...
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file_put_contents(meta/services.json): failed to open stream: Permission denied

... Suggestion from vsmoraes worked for me: Laravel >= 5.4 php artisan cache:clear chmod -R 777 storage/ composer dump-autoload Laravel < 5.4 php artisan cache:clear chmod -R 777 app/storage composer dump-autoload NOTE: DO NOT DO THIS ON ANY REMOTE SERVER (DEV OR PRODUCTIO...
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Regular expression for letters, numbers and - _

I'm having trouble checking in PHP if a value is is any of the following combinations 6 Answers ...
https://bbs.tsingfun.com/thread-1527-1-1.html 

Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...

...到错误908(权限接收短信)的讨论。一位用户遇到了这个问题,并询问是否有人知道如何解决。其他用户提供了一些可能的解决方案,包括检查应用程序权限设置、确保手机上的权限设置正确、重新编译应用程序等。有人建议检...
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Can someone explain the dollar sign in Javascript?

... someone just put a dollar sign at the start for fun - perhaps they were a PHP programmer who did it out of habit, or something. In PHP, all variable names must have a dollar sign in front of them. There is another common meaning for a dollar sign in an interpreter nowadays: the jQuery object, who...
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What are the best practices for catching and re-throwing exceptions?

...t to decide how the failure should be handled at the top level. In earlier PHP versions this would be implemented as $connect = new CONNECT($db, $user, $password, $driver, $host); try { $connect->insertSomeRecord(); } catch (Exception $e) { $connect->disconnect(); // we don't want to ...