You can use your robot to send real-time video images, and this could be a very interesting DIY robotic application. In this article, we make an overview of three possible ways for real-time streaming...
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移动开发 时间:
2014-07-24 23:39:43
阅读次数:
634
转换和继承,虚函数
Understanding conversions between base and derived classes is essential to
understanding how object-oriented programming works in C++.
理解基类和派生类之间的转换是必不可少的 理解面向对象编程在。
Like built-i...
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编程语言 时间:
2014-07-24 10:26:53
阅读次数:
488
在我们写SQL查询的过程中,有几个使用得非常频繁的谓词和逻辑运算符,谓词主要有IN,BETWEEN,以及LIKE。逻辑运算符主要有OR和AND。下面来分别总结它们。 IN IN一般用于判断一个值是否与一组元素中的至少一个相等。例如,以下SQL查询返回订单ID等于10248,或10249,或10250...
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其他好文 时间:
2014-07-22 22:52:34
阅读次数:
270
本次讲的查询方法主要有:表达式查询,模糊查询,between语句,in语句,区间查询,统计数据,普通方式查询,但大多数都只是引入数组而已,明白了第一个,其他的也就差不多全明白了,唯一要注意的是在后台中notlike中间没空格,而notin,notbetween中间必须有空格才能有效,不要与后面的前台...
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Web程序 时间:
2014-07-22 22:43:33
阅读次数:
175
Networking
Time Limit: 1000MS
Memory Limit: 10000K
Total Submissions: 6000
Accepted: 3242
Description
You are assigned to design network connections between certain p...
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Web程序 时间:
2014-07-22 00:12:35
阅读次数:
247
Input / Output
It should also provide an interface between the devices and the rest of the system that is simple and easy to use. 于是乎这里就有了对于硬盘等IO设备的抽象。
5.1 PRINCIPLES OF I/O HARDWARE...
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其他好文 时间:
2014-07-21 23:31:54
阅读次数:
548
Pipes have no names, and their biggest disadvantage is that they can be used ?only?between processes that have a parent process in common. Two unrelated processes can-? not create a pipe betwee...
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其他好文 时间:
2014-07-21 10:36:45
阅读次数:
237
Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level and alternate between).
For example:
Given binary...
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其他好文 时间:
2014-07-20 22:41:23
阅读次数:
303
Methods and systems are disclosed for ultra-wideband (UWB) secure wireless device pairing. Secure pairing between devices for secure UWB communication...
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其他好文 时间:
2014-07-20 22:36:49
阅读次数:
358
Consider an arbitrary sequence of integers. One can place + or - operators between integers in the sequence, thus deriving different arithmetical expr...
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其他好文 时间:
2014-07-19 22:37:50
阅读次数:
243