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scratch

scratch是麻省理工学院的“终身幼儿园团队”在2007年[5]发布的一种图形化编程工具,主要面对全球青少年开放,是图形化编程工具当中最广为人知的一种,所有人都可以在软件中创作自己的程序。截至2022年仍在更新。[6]
  • scratch星际飞行

    这是少儿scratch的星际飞行源码,简单好用,欢迎下载!

    标签: scratch 星际 飞行

    上传时间: 2020-04-07

    上传用户:biocai

  • scratch for pcDuino 创意编程》高清版 212页

    内容简介“旧时王谢堂前燕,飞入寻常百姓家”,在研究图形化编程时就有这种感觉,原来属于程序员们玩的编程,通过 scratch 图形化编程工具让普通人经过几个小时学习也能玩,每个人都可以通过它发挥自己的想象力,用编程的方式去表达自己的内心。这个过程就如同当年的 DOS 向 Windows 转变,正是这种图形化操作窗口的出现,让普通人在电脑面前不再恐惧,电脑做为表达自己的一种工具逐渐开始普及。本书系统阐述了 scratch 图形化编程软件的一个开发版本 scratch for pcDuino 的初步应用。使读者能够初步了解用程序解决问题的一般步骤和方法。本书在编写形式上以主题引领任务,以任务驱动应用,以应用带动能力,使读者在使用时可操作性强。本书结合本地化素材,通过“游戏介绍”、“准备道具”、“脚本设计”、“游戏拓展”以讲故事的方式,启发读者在探究的过程中完成学习任务。这种编排也有利于使用本书进行教学的教师,可以在此基础上建立自己的本地化教材。

    标签: scratch

    上传时间: 2022-07-10

    上传用户:

  • scratch游戏设计教程(20个实例制作方法)

    scratch游戏设计教程(20个实例制作方法),附软件链接地址,软件有多国语设置。其中包括简体中文。scratch就是这样一款既简单又好玩,小学生也能玩,能够实现我们愿望的积木式编程软件能制作一款自创的游戏、动漫作品等。内附的链接指引还附其它设计教程。

    标签: scratch 游戏设计

    上传时间: 2022-07-25

    上传用户:

  • DS1820 C51 子程序 (一线数据传输)

    //芯片资料请到www.elecfans.com查找 //DS1820 C51 子程序//这里以11.0592M晶体为例,不同的晶体速度可能需要调整延时的时间//sbit DQ =P2^1;//根据实际情况定义端口 typedef unsigned char byte;typedef unsigned int  word; //延时void delay(word useconds){  for(;useconds>0;useconds--);} //复位byte ow_reset(void){  byte presence;  DQ = 0; //pull DQ line low  delay(29); // leave it low for 480us  DQ = 1; // allow line to return high  delay(3); // wait for presence  presence = DQ; // get presence signal  delay(25); // wait for end of timeslot  return(presence); // presence signal returned}     // 0=presence, 1 = no part //从 1-wire 总线上读取一个字节byte read_byte(void){  byte i;  byte value = 0;  for (i=8;i>0;i--)  {    value>>=1;    DQ = 0; // pull DQ low to start timeslot    DQ = 1; // then return high    delay(1);  //for (i=0; i<3; i++);     if(DQ)value|=0x80;    delay(6); // wait for rest of timeslot  }  return(value);} //向 1-WIRE 总线上写一个字节void write_byte(char val){  byte i;  for (i=8; i>0; i--) // writes byte, one bit at a time  {    DQ = 0; // pull DQ low to start timeslot    DQ = val&0x01;    delay(5); // hold value for remainder of timeslot    DQ = 1;    val=val/2;  }  delay(5);} //读取温度char Read_Temperature(void){  union{    byte c[2];    int x;  }temp;   ow_reset();  write_byte(0xCC); // Skip ROM  write_byte(0xBE); // Read scratch Pad  temp.c[1]=read_byte();  temp.c[0]=read_byte();  ow_reset();  write_byte(0xCC); //Skip ROM  write_byte(0x44); // Start Conversion  return temp.x/2;}

    标签: 1820 C51 DS 程序

    上传时间: 2013-11-03

    上传用户:hongmo

  • Virtex-5 GTP Transceiver Wizar

    The LogiCORE™ GTP Wizard automates the task of creating HDL wrappers to configure the high-speed serial GTP transceivers in Virtex™-5 LXT and SXT devices. The menu-driven interface allows one or more GTP transceivers to be configured using pre-definedtemplates for popular industry standards, or from scratch, to support a wide variety of custom protocols.The Wizard produces a wrapper, an example design, and a testbench for rapid integration and verification of the serial interface with your custom function Features• Creates customized HDL wrappers to configureVirtex-5 RocketIO™ GTP transceivers• Users can configure Virtex-5 GTP transceivers toconform to industry standard protocols usingpredefined templates, or tailor the templates forcustom protocols• Included protocol templates provide support for thefollowing specifications: Aurora, CPRI, FibreChannel 1x, Gigabit Ethernet, HD-SDI, OBSAI,OC3, OC12, OC48, PCI Express® (PCIe®), SATA,SATA II, and XAUI• Automatically configures analog settings• Each custom wrapper includes example design, testbench; and both implementation and simulation scripts

    标签: Transceiver Virtex Wizar GTP

    上传时间: 2013-10-23

    上传用户:leyesome

  • Virtex-5 GTP Transceiver Wizar

    The LogiCORE™ GTP Wizard automates the task of creating HDL wrappers to configure the high-speed serial GTP transceivers in Virtex™-5 LXT and SXT devices. The menu-driven interface allows one or more GTP transceivers to be configured using pre-definedtemplates for popular industry standards, or from scratch, to support a wide variety of custom protocols.The Wizard produces a wrapper, an example design, and a testbench for rapid integration and verification of the serial interface with your custom function Features• Creates customized HDL wrappers to configureVirtex-5 RocketIO™ GTP transceivers• Users can configure Virtex-5 GTP transceivers toconform to industry standard protocols usingpredefined templates, or tailor the templates forcustom protocols• Included protocol templates provide support for thefollowing specifications: Aurora, CPRI, FibreChannel 1x, Gigabit Ethernet, HD-SDI, OBSAI,OC3, OC12, OC48, PCI Express® (PCIe®), SATA,SATA II, and XAUI• Automatically configures analog settings• Each custom wrapper includes example design, testbench; and both implementation and simulation scripts

    标签: Transceiver Virtex Wizar GTP

    上传时间: 2013-10-20

    上传用户:dave520l

  • SDP Search and Record generator OVERVIEW: Recognizing the difficulty in creating an SDP service

    SDP Search and Record generator OVERVIEW: Recognizing the difficulty in creating an SDP service description and search from scratch, Microsoft is providing a sample utility in bthnscreate.cxx to automatically create a service or record. This utility can be run to create an SDP record or to setup an SDP Service, Attribute, or ServiceAttribute search based on information stored in a human readable file.

    标签: Recognizing difficulty SDP generator

    上传时间: 2015-04-16

    上传用户:dyctj

  • 国内还比较新的network processor的微代码开发

    国内还比较新的network processor的微代码开发,关于scratch ring的例子,用的uc语言,告诉你如何利用已有的宏和调用硬件资源。

    标签: processor network 比较 代码

    上传时间: 2013-12-07

    上传用户:

  • As of UnZip 5.42, this source has been removed from Info-ZIP s UnZip source distribution because of

    As of UnZip 5.42, this source has been removed from Info-ZIP s UnZip source distribution because of its conflicting copyright. There are no plans to ever rewrite this code from scratch, because the unreduce algorithm was never used in the "real" world.

    标签: source UnZip distribution Info-ZIP

    上传时间: 2013-12-19

    上传用户:songrui

  • In this paper, we describe the development of a rapidly reconfigurable system in which the users’ ta

    In this paper, we describe the development of a rapidly reconfigurable system in which the users’ tacit knowledge and requirements are elicited via a process of Interactive Evolution, finding the image processing parameters to achieve the required goals without any need for specialised knowledge of the machine vision system. We show that the resulting segmentation can be quickly and easily evolved from scratch, and achieves detection rates comparable to those of a hand-tuned system on a hot-rolled steel defect recognition problem.

    标签: reconfigurable development the describe

    上传时间: 2014-01-05

    上传用户:hopy