PCB设计指导参考及帮助资料，提供PCB的元器件的布局走线等问题...

is95数字子基带系统仿真,非常全面，包括发送和接受子系统-digital baseband system simulation for is-95

算法分析,N皇后问题,这是上交的作业,准确无误!-Algorithm analysis, N queens problem

pathChirp is an active probing tool for estimating the available bandwidth on a communication network path. Based on the concept of "self-induced congestion," pathChirp features an exponential flight pattern of probes we call a chirp. Packet chirps offer several significant advantages over current probing schemes based on packet pairs or packet trains. By rapidly increasing the probing rate within each chirp, pathChirp obtains a rich set of information from which to dynamically estimate the available bandwidth.

java 备忘录模式，实现前进，回退，让你有后悔药，包括例子。-java memorandum mode to achieve progress and regress, so that you can have a regret drugs, including examples.

注册表读写的示范程序，在注册表里添加自己的注册表项，可以删除-Demonstration program to read and write registry, add your own in the registry where the registry key, can be deleted

4乘4键盘扫描，使用与多种场合，我检验过，能用-4 x 4 keypad scanning, using a variety of occasions, I have tested, can be used

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php下开发webservice常用开发包，可用来开发webservice服务端和客户端-php used to develop webservice development kit that can be used to develop webservice server and client

显示螺旋队列，//螺旋队列.cpp // 21 22 ... ... // 20 7 8 9 10 // 19 6 1 2 11 // 18 5 4 3 12 // 17 16 15 14 13 //看清以上数字排列的规律，设1点的坐标是（0，0），X方向向右为正，y方向向下为正。例如，7的坐标为 //（-1，-1），2的坐标为（0，1），3的坐标为（1，1）。编程实现输入任意一点坐标（x,y),输出所对应得-Show the spiral queue,// spiral queue. Cpp// 21 22 ... ...// 20 7 8 9 10// 19 6 1 2 11// 18 5 4 3 12// 17 16 15 14 13// see the above figures with the laws of 1:00 set the coordinates is (0,0), X is positive to the right direction, y direction is positive downward. For example, 7 of the coordinates// (-1,-1), 2 coordinates for (0,1), 3 coordinates for the (1,1). Programming enter coordinates of any point (x, y), the output corresponding to a

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