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Command line to remove an environment variable from the OS level configuration
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Ah! What do you suppose the rational is for that?? I always avoid admin as much as possible - UNIX/BSD/Linux upbringing. Thanks a mil for the awesome diligence. +1
– caasjj
Apr 5 '16 at 20:36
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How do I disable orientation change on Android?
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I've always found you need both
android:screenOrientation="nosensor" android:configChanges="keyboardHidden|orientation"
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How to simulate Android killing my process
Android will kill a process if it is in the background and the OS decides it needs the resources (RAM, CPU, etc.). I need to be able to simulate this behaviour during testing so that I can ensure that my application is behaving correctly. I want to be able to do this in an automated way so that I ca...
How can you detect the version of a browser?
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just discovered serious issue downgrading broswer IE11 to IE10 navigatior user agent showing Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/6.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.3; .NET4...
How to remove unused C/C++ symbols with GCC and ld?
...ou could omit the unused one with the following command to gcc(g++):
gcc -Os -fdata-sections -ffunction-sections test.cpp -o test -Wl,--gc-sections
(Note that -Os is an additional compiler flag that tells GCC to optimize for size)
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我帮儿子用App Inventor 2给遥控车装了"蓝牙大脑"，手机一划车就...
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技术方案
硬件端
- 遥控车原有电路不动，额外并联一个HC-05蓝牙模块
- HC-05的TX/RX接Arduino Nano的RX/TX（注意交叉）
- Arduino读取蓝牙数据后，通过MOS管驱动原有遥控车的电机控制信号
软件端（App Inventor 2）
核心组件清单...
How to copy files across computers using SSH and MAC OS X Terminal [closed]
...do this with the scp command, which uses the ssh protocol to copy files across machines. It extends the syntax of cp to allow references to other systems:
scp username1@hostname1:/path/to/file username2@hostname2:/path/to/other/file
Copy something from this machine to some other machine:
scp /pa...
How to kill an Android activity when leaving it so that it cannot be accessed from the back button?
...s, all you need to do is call finish() in any Activity you would like to close.
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What is the “FS”/“GS” register intended for?
So I know what the following registers and their uses are supposed to be:
5 Answers
5
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How does delete[] know it's an array?
...lly, using delete[] to delete something created with new is exploitable. taossa.com/index.php/2007/01/03/…
– Rodrigo
Apr 24 '09 at 13:20
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