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How do I turn off the output from tar commands on Unix? [closed]
...to avoid output sent to stderr and stdout, you can add >/dev/null 2>&1to the command shown in this answer.
– André Gasser
Dec 12 '17 at 20:02
5
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天气API：[url]https://devapi.qweather.com/v7/weather/3d?location=10101...
天气API：https://devapi.qweather.com/v7/w ... 400b695bdf067ce148d
BLE &APP交互学习教程02——接收指令 - 创客硬件开发 - 清泛IT社区，为创新赋能！
BLE模块性价比高，无需配对就可以连接使用，本节开始，我们来学习使用BLE接收并显示。1.界面设计
2.逻辑设计
3.APP工程
4.小结
BLE模块的发送和接收短接，APP发送来的数据模块接收后显示在输入框内。
OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...nection_t(TCP连接)的输出缓冲区链表中
handler_.encode = ObMySQLCallback::encode;
// libeasy回调这个函数用于从该连接的输入缓冲区中反序列化出一个符合MySQL协议的包，然后吐给上层使用
handler_.decode = ObMySQLCallback::decode;
// 对于每个decode...
Rails :include vs. :joins
...de functionality was changed with Rails 2.1. Rails used to do the join in all cases, but for performance reasons it was changed to use multiple queries in some circumstances. This blog post by Fabio Akita has some good information on the change (see the section entitled "Optimized Eager Loading")....
Why use pointers? [closed]
...nt the content of the memory address pointed to by 'a' plus one (in this example above), and we wouldn't have had to put the * in front:
printf("Second char is: %s", (a+1)); /* WRONG */
But this would not have just printed the second character, but instead all characters in the next memory addres...
Retain cycle on `self` with blocks
...nswered Dec 4 '10 at 8:14
Lily BallardLily Ballard
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Can I use multiple versions of jQuery on the same page?
...trol. Can I safely just use the latter half, or do both libraries need to call noConflict()?
– Bungle
Oct 14 '09 at 15:05
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Python list subtraction operation
... [1,2] you will get empty list. [1,1,2,2] - [2] gives [1,1] So it is not really list substraction, it is more like "List from List X without elements from set Y".
– Alfred Zien
Feb 6 '16 at 10:25
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