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How can I ignore everything under a folder in Mercurial
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XianXian
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蓝牙配对pin码设置 - 创客硬件开发 - 清泛IT社区，为创新赋能！
蓝牙配对 PIN 码是用于确保蓝牙设备之间进行加密通信的一种方式。一般情况下，当您在第一次将两个蓝牙设备配对时，会要求您输入一个四位数或六位数的 PIN 码。这个 PIN 码必须在两个设备上输入相同的数字才能进行配对成功...
Application Skeleton to support multiple screens
...so if we are creating a folder named drawable-sw360dp then the device with 720dp(either width or height) will use resource from the this folder.
for example to find the Samsung Galaxy S3 dp to suffix to drawable-sw?dp
With reference of DP Calculation, If you want to support your layout or drawable ...
App Inventor 2 为什么组件的事件无效，没有执行？ - App Inventor 2 中文...
如题，如果确认事件中代码逻辑没有问题的话，有可能时因为事件重复了导致的，重复的情况下，事件都不会执行，如：
使用AI伴侣测试的时候，不会报错，但是事件中的代码会忽略掉。
当然代码重复的话，前面会有错...
disable maven download progress indication
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72
First of all, as already answered by khmarbaise, you should use mvn -B to enable batch mode.
I...
How can I build a small operating system on an old desktop computer? [closed]
... is the one we used in my OS class in college:
Modern Operating Systems PDF
Modern Operating Systems on Amazon
Despite the ridiculous cover, it's a fantastic read, especially for a textbook. Tanenbaum is really an expert in this area and his explanations of how the OS works underneath the hoo...
What is %2C in a URL?
... DC1 | 31 | 1 | 51 | Q | 71 | q |
| 12 | DC2 | 32 | 2 | 52 | R | 72 | r |
| 13 | DC3 | 33 | 3 | 53 | S | 73 | s |
| 14 | DC4 | 34 | 4 | 54 | T | 74 | t |
| 15 | NAK | 35 | 5 | 55 | U | 75 | u |
| 16 | SYN | 36 | 6 | 56 | V | 76 | v |
| 17 | ETB | 37 | 7 | 57 | ...
WPF: How to display an image at its original size?
... regarding DPI settings, Paja. Several of my toolbar icons had been set to 72 DPI, which causes them to appear larger even if the pixel dimensions are 16x16.
– dthrasher
Mar 14 '11 at 0:21
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How to work with complex numbers in C?
..., check page 182 of N1256 draft open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf#page=182 "7.3 Complex arithmetic <complex.h>". Such keyword was probably selected in C99 to not break existing c (C90) programs which implements complex by hand. If <complex.h> is included, complex will be def...
When should you not use virtual destructors?
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There is no need to use a virtual destructor when any of the below is true:
No intention to d...