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MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...Arcom的Arlen Nipper（现为Eurotech的CTO）。
2009年MQTT协议诞生10周年生日发明起因TCP协议和MQTT协议的设计都与卫星通信有着直接的联系。1972年时，Kahn在IPTO公司参与了一个卫星通信网络项目，他就搞了个子项目来搭建卫星基站的无线...
Creating an instance using the class name and calling constructor
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What is the colon operator in Ruby?
...o" # => true
– Filip Bartuzi
May 10 '17 at 13:58
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Is Fortran easier to optimize than C for heavy calculations?
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jaredorjaredor
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Angular directives - when and how to use compile, controller, pre-link and post-link [closed]
...s name? :)
– merlin
Jul 17 '14 at 3:10
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@merlin I've used OmniGraffle (but could have used illus...
PHP 5.4 Call-time pass-by-reference - Easy fix available?
...ekkaPekka
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Return first N key:value pairs from dict
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edited Nov 17 '17 at 10:03
Hendy Irawan
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Regular Expression to get a string between parentheses in Javascript
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user1063287
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How do you underline a text in Android XML?
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What's the simplest way to test whether a number is a power of 2 in C++?
...; (n-1)) == 0))
– Saurabh Goyal
Jul 10 '16 at 8:06
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@SaurabhGoyal or n && !(n & (n -...