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错误解决:Xcode not set up properly. You may need to confirm the licens...

.../Applications/Xcode.app/Contents/Developer) 升级xcode 后 Qt 出问题了,google 找到了解决方法。 http://stackoverflow.com/questions/33728905/qt-creator-project-error-xcode-not-set-up-properly-you-may-need-to-confirm-t ~> Xcode 8 This problem occurs when command line too...
https://bbs.tsingfun.com/thread-966-1-1.html 

程序崩溃时malloc/new可能导致死锁,程序卡死退不出 - C/C++ - 清泛IT论坛...

...会发生死锁现象。而且只有崩溃时才有malloc的可重入性的问题。 2、Linux下可以通过添加一个宏 _REENTRANT 解决,Windows未知。
https://bbs.tsingfun.com/thread-1437-1-1.html 

【最全】谈如何升级aiStarter内置AI伴侣的方式及原理 - App Inventor 2 中...

...传,本文重点是谈谈如何升级aiStarter中内置的AI伴侣这个问题的,而且说明一下每种方式背后的原理。本文假设你会使用aiStarter进行常规的App测试。1、启动aiStarter模拟器,使用内置的浏览器输入AI伴侣apk的下载地址,下载后安装 ...
https://bbs.tsingfun.com/thread-1777-1-1.html 

按键可见性的延时设置 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

大家好,咨询请教一个问题, APP上面的 按键 当按下一个按键 设置2号按键可见性为假 (这个功能可以实现),但 在设定时间内,比如一个小时,或者更长时间后, 让原先的2号按键的可见性从原来的假 恢复成真 用“计时...
https://bbs.tsingfun.com/thread-2018-1-1.html 

请问输入文件要往哪放? - App应用开发 - 清泛IT社区,为创新赋能!

...看文件)理论上,读写方法都是这样写路径,如果运行有问题,请贴出具体的报错截图。 2、更强大的文件管理功能,可以使用FileTools拓展:https://www.fun123.cn/reference/components/storage.html#FileTools 3、如果仅仅是为了App退出保存一些...
https://bbs.tsingfun.com/thread-2127-1-1.html 

文本朗读器BUG - App应用开发 - 清泛IT社区,为创新赋能!

是不是文本朗读器有BUG,使用AI助手连接,使用是正常的,打包为APK就没有声音了{:8_364:}目前已知,miui系统的小米手机是有这个问题的,其他手机正常,原因目前未知。 https://bbs.tsingfun.com/forum.p ... id=2097&fromuid=810
https://bbs.tsingfun.com/thread-2129-1-1.html 

Call to ‘set-and-coerce-property!’ has too few arguments (3; must be...

...y!’ has too few arguments (3; must be 4) 原因是因为代码块有问题/报错,有空的地方没有填值,比如这种: 参考:https://community.appinventor.mi ... 3-must-be-4/20690/4 又学习到了新bug的解决方法,{:8_381:}
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deny directory listing with htaccess

...tings. If you are using a .htaccess file make sure you have at least the "allowoverride options" setting in your main apache config file. share | improve this answer | follo...
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Safe characters for friendly url [closed]

... To quote section 2.3 of RFC 3986: "Characters that are allowed in a URI but do not have a reserved purpose are called unreserved. These include uppercase and lowercase letters, decimal digits, hyphen, period, underscore, and tilde." ALPHA DIGIT "-" / "." / "_" / "~" N...
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How do you create optional arguments in php?

...ument must be a constant expression. It can't be a variable or a function call. If you need this functionality however: function foo($foo, $bar = false) { if(!$bar) { $bar = $foo; } } Assuming $bar isn't expected to be a boolean of course. ...