大约有 9,000 项符合查询结果（耗时：0.0174秒） [XML]
App Inventor 2 多用户预订系统如何设计？ - App Inventor 2 中文网 - 清泛...
问：我遇到了一个难题，我开发了一个软件，两个手机都安装了同一个软件，我在一个手机上显示按钮已经不能启用，但在另一个手机上该按钮确还能用，我的目标是这个跟酒店房间一样，当某个房间有人订了，其他人就不能订...
系统界面增强扩展 - KevinkunEnhance - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
Enhangcement可以设置组件的背景色、背景图像、边框、圆角矩形、外边距、内边距、高程、使用自定义字体等示例截图实时调整布局外观(感谢ldtxinkai提供截图)
属性块设置背景颜色及圆角背景颜色fillColor、边框宽度borderWidth、边框...
“信息分享器”误点了始终按钮，还能恢复初始的选择选项吗？ - App应用开发...
...卓设备上，如果你选择了“始终使用此应用”来进行分享操作，并希望清除该默认设置以便重新选择其他应用程序，可以按照以下步骤完成：
### 清除默认设置的操作流程：
1. **进入系统设置**
打开手机的...
“AppInventor学院”App国内各大市场上架之旅 - App应用开发 - 清泛IT社区...
...、用途；告知方式不限于弹窗、蒙层、浮窗、或者自定义操作系统权限弹框等，且权限申请使用目的说明不应自动消失。请排查应用内所有的权限申请行为，确保不存在类似问题。
上述的步骤我们写了专门的拓展解决：https://w...
Output to the same line overwriting previous output?
...
Here's code for Python 3.x:
print(os.path.getsize(file_name)/1024+'KB / '+size+' KB downloaded!', end='\r')
The end= keyword is what does the work here -- by default, print() ends in a newline (\n) character, but this can be replaced with a different string...
Static method behavior in multi-threaded environment in java
...d try and explain at a slightly more simple level for anybody who comes across this and is newish to Java. Here goes..
Memory in java is split up into two kinds - the heap and the stacks. The heap is where all the objects live and the stacks are where the threads do their work. Each thread has its ...
What is the difference between a thread and a fiber?
...
In the most simple terms, threads are generally considered to be preemptive (although this may not always be true, depending on the operating system) while fibers are considered to be light-weight, cooperative threads. Both are separ...
How to insert a newline in front of a pattern?
...
This works in bash and zsh, tested on Linux and OS X:
sed 's/regexp/\'$'\n/g'
In general, for $ followed by a string literal in single quotes bash performs C-style backslash substitution, e.g. $'\t' is translated to a literal tab. Plus, sed wants your newline literal to...
What are file descriptors, explained in simple terms?
...formation about that opened file. So if there are 100 files opened in your OS then there will be 100 entries in OS (somewhere in kernel). These entries are represented by integers like (...100, 101, 102....). This entry number is the file descriptor.
So it is just an integer number that uniquely rep...
How to check status of PostgreSQL server Mac OS X
How can I tell if my Postgresql server is running or not?
6 Answers
6
...