有1、2、3、4个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？ 1.程序分析：可填在百位、十位、个位的数字都是1、2、3、4。组成所有的排列后再去 掉不满足条件的排列。 -There are numbers 1,2,3,4, how many can be composed of mutually exclusive and non-duplication of the same three-digit numbers? How many are? 1. Program analysis: can be filled in the 100, 10, single-digit figures are 1,2,3,4. With all components and then remove the conditions are not satisfied with the arrangement.
学习MATLAB入门的有效途径，对学习新手很有帮助。欢迎下载。-learning portal, is an effective way to learn useful novice. Welcome to download.
JMX是一个很好的技术，请大家看完这个源代码后有些启发-JMX is a good technology, please read the source code after some inspiration
一篇全面介绍MIMO的经典文章。推荐入门者下载-MIMO a comprehensive presentation of the classic articles. Download recommend beginners
zh这是一个用遗传算法优化神经网络的例子-zh is a genetic algorithm with neural network examples
介绍SOCKET在linux下的网络编程实现-SOCKET in the introduction of network programming under linux realize
How to Reball BGA,reballing proce-How to Reball BGA,reballing process
JGDS文件导入/导出软件包的支撑软件包，主要用于读取gds文件中的BNT代码-JGDS document inducts/derives the software package the strut software package, mainly uses in to read takes gds in the document the BNT code
详细的WAV 文件格式-detailed WAV file format
modbus的文章很好的资料啊 大家都来共同学习-Modbus article of information ah well we all come together to learn
利用SPCE061A芯片实现简单的复读机，时间可以长达30秒-SPCE061A chip using a simple repetition machine, the time may be as long as 30 seconds
本文章实现java的各种打印功能,大家一起分享! (转载)-java achieve the printing function, to share with everyone! (Reproduced)
该文件是关于状态反馈和观测器的习题，里面的习题均有完整的解答，对学习的朋友很有帮助。欢迎下载！-the document on state feedback and observation of exercises, which are the integrity of the questions to answer, learning helpful friends. Welcome to download!
ISO/IEC 14496-3 OLD MPEG4 æ ‡å‡†-ISO/IEC 14496-3 standard MPEG4 OLD
4*4键盘显示电路程序，汇编语言编程。 本程序实现4*4键盘控制数码管显示功能-4* 4 keyboard display circuit procedures, assembly language programming. This procedure to achieve 4* 4 Keyboard control digital tube display
开题报告，里面有模板，还有JAVA的开题报告一份。-Problem that the report, there are templates, as well as the opening title JAVA report.
通过一句 的问答方式，详细讲解了LINUX的一些操作。-through one ask after one ask ,insight the operation of linux system.
这是关于图像调制传递函数MTF计算的一篇优秀文章，可以处理卫星图像，提高图像清晰度-This is on the image modulation transfer function MTF calculated an excellent article, you can deal with satellite imagery, improve image clarity
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