![乐高机器人:Scratch与WeDo编程基础实战应用](https://wfqqreader-1252317822.image.myqcloud.com/cover/707/31251707/b_31251707.jpg)
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2.2 WeDo 2.0模块详解
认识图标
1.电动机(马达)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_01.jpg?sign=1739303258-3PfwhC2iPbgUGmrFF7xGsBfR6uKgMJoo-0-71c442a1d574e48cde4c22f32090303f)
电动机功率
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_02.jpg?sign=1739303258-WvjB6tx5sYEFc50A5alSZDCRc8mLoyyV-0-6534c707d34a497ae52513b130b8578f)
电动机等待
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_03.jpg?sign=1739303258-F1HrtpmExIgfDiBIUhVQZa3NsMumf6RX-0-5691a2c7fff56430a140e7eae19a1c3b)
电动机停止
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_04.jpg?sign=1739303258-0HbZMdeKHxaw9HAFKCRQmiX0Cw0oGzcH-0-89363bb3eb2c10a62a1cf690b863a38a)
电动机正转
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_05.jpg?sign=1739303258-PsEEjBhZN1L2maP4Q36PjYqsggAyGWb4-0-508984378a145dc2b35c0a15e3013527)
电动机反转
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_06.jpg?sign=1739303258-7F0EIUVnfVljAoxCEqdQ0y9jG7w4RrRv-0-c1d27e8b5e1a4d830e8ed53b824ce8e0)
指示灯
2.显示图标
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_07.jpg?sign=1739303258-rNqgVXFLFzkqCrmQ9qqCvi85vwWNPpQC-0-8201dfd6a9af3f13cbf73b7f804f9171)
图片
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_08.jpg?sign=1739303258-vOMdgMGAqamZ6PsapqfVLn3RMiU0EffQ-0-9b43ce3375a946e0cedca84a2fa70248)
文本
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_09.jpg?sign=1739303258-xxA0jDtWtbSW6Uda4HiOjfOeylhI3hOK-0-42fdb06740029d3fce7c1ff6ed7678de)
运算符
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_10.jpg?sign=1739303258-R28900aDidwEM9g2YNY6uEuXzPAgDjcp-0-4aaa109df1907fe5e3128d4355f39301)
中屏显示
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_11.jpg?sign=1739303258-rhDWxq1xkGd4xKo4dQu4RymgO8O7whXJ-0-ca73a805d208fe83a8bf594d77dcfd36)
播放音乐
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_12.jpg?sign=1739303258-sIihAqG6hvhx3OKoxMEVgIma8D3J2kVg-0-9952c65c1ee111f2dd692ab8267a84e3)
全屏显示
3.流程控制
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_01.jpg?sign=1739303258-0iIBYWCThfAUT9MfuW340DyYWX4GEKM0-0-e52ac092da9ca7fa1cf01a4d6ea7e9e9)
开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_02.jpg?sign=1739303258-GSS7AdaKsZxmrWjCN9QraA38StP3BSY6-0-6a941c80a2c8532b9e25a99b2642d407)
按键开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_03.jpg?sign=1739303258-KTOUR4Qqdodv42UmP2PQpeEN8F8IzK7A-0-a5829be10b4992ffadfeefdf3f94922b)
信息开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_04.jpg?sign=1739303258-BnHUSWx6XZSVdzKQZ1Nbi3cOP0K9odMf-0-0eb129ad214f0568af841b7270ed1558)
信息发送
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_05.jpg?sign=1739303258-SdS6sulsAfNRyuRxRQSFN97ccccbECHt-0-fe50eb6389fb3f1abcfe291c935d3d2c)
等待
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_06.jpg?sign=1739303258-ykqE7P69Xa6zNnI0QHbUrmbKwhbMw7tY-0-0a0f41df2f5c8fec8af5b8d5483c17cf)
循环
4.赋值图标
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_07.jpg?sign=1739303258-omKtl6b64K5G3UDtjUvvPZx822IeykZE-0-59c55079f04875647faedd88870226d0)
输入数字
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_08.jpg?sign=1739303258-SL7rNvIEnnz9fSSbXFU8SSG3DkueValB-0-e8189f94892e7cea46d9d9bff4e4b899)
输入文本
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_09.jpg?sign=1739303258-Z3B6xgBma8Gcz12uzALRQMNYb5sKgPkq-0-8eae7f93c8a9a1fbb6794712631cbb8f)
随机数字
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_10.jpg?sign=1739303258-63GsLI4q7oy0meiFSLzZEqqNjWevq0f9-0-36013bd77e3a86eaf30a814883db7fcf)
动态数字(变量)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_11.jpg?sign=1739303258-scLVR1ra4ICEzgZOIgBlPzjGVS87eDtO-0-657778f85dcaca8cf77c078b323ecf7e)
检测声音
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_12.jpg?sign=1739303258-04swTz93SADv7cQI4kKYtKONiyrbWWzy-0-aef649a81b4412b43355a6fef61f2c62)
检测运动
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_13.jpg?sign=1739303258-vPeaiX4rkfvgjY4WTg4gGwGtgUAosFrF-0-3660e9bb497c7253dc178863bfc72065)
检测平衡
传感器
以下是平衡(倾斜)传感器的6种状态。
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_01.jpg?sign=1739303258-BIMyw3nTU7ZVzY1e87n28WFOnJ09ZYlO-0-89b6ff879f3b9d25296a5ebadcf19919)
后倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_02.jpg?sign=1739303258-Z5m9EcB6lhOh7vzTlYIQEwdufoCz5Uru-0-3b7da1c4008c776799d44c2a02e4fb56)
前倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_03.jpg?sign=1739303258-W3DN46yvd20tcHz3bOEQuuM54wfSK0ED-0-3f61c708767c2efeda12220fa21ef586)
右倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_04.jpg?sign=1739303258-iHn1F9BTy7XaEd6SABenApO7wQmySBTF-0-cc6fbec7b5666092dca2ce6f20ff36d4)
左倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_05.jpg?sign=1739303258-BbJoNUcxk393RnJzTO8I31zyhUer7aHM-0-9abb270ffe63775bd9cde13fb2c29dd5)
平置
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_06.jpg?sign=1739303258-S67qeJpaMREFdlVo3saBxfKx8QyiVFhM-0-6fb64692a567417545fca1e248f14cf0)
震动
以下是运动(距离)传感器的4种状态。
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_07.jpg?sign=1739303258-xA64xQpgfo5SxhYMpTlAwwlyxd8K9pYv-0-de79b96f4c5662ef3af43ef1a5cf693a)
远近(任何距离变化)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_08.jpg?sign=1739303258-ALDVVCQRpsHn84KqQs4Bw3O9pm9503Yj-0-0d41c1439b2371b684ca020d91356e4e)
靠近
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_09.jpg?sign=1739303258-Gm3g2VGOFm6ihP52Lmz5zFIQHLcZtl2W-0-18e62b704b91cb7931df909b14e68444)
远离
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_10.jpg?sign=1739303258-IutUi0bNi8saC1bw0l65MvG04NCoS6oe-0-32272b5f1c8f23746f76d59081d73e2a)
读数(向程序块输入运动传感器检测到的数值,0~10)
执行顺序
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/43_01.jpg?sign=1739303258-LL0HAeVOFhpLo3PhqntXuNWkPSrBCrtK-0-0e313a34683a47adc60314448dd01b1b)
WeDo按从左到右的顺序执行程序
条件判断
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/43_02.jpg?sign=1739303258-IOCgnpBPkYjnavDAJODPfaT99ns0mZ1r-0-57ad9f8f806bbdc0b0263854748e0573)
移近和离开
循环
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/43_03.jpg?sign=1739303258-3gFJUqNLbQGKtoetMsY7tbz5lrclfXlW-0-843040deb70cc77980969856d6b27677)
循环4次
并行程序
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/44_01.jpg?sign=1739303258-jnLXxQiszTYrmW9xUPnsZHPMaRADzVor-0-b0d73c65cfca8ec438bc170ff6d7ea1c)
按A启动程序,同时运行两个循环检测。
发送消息
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/44_02.jpg?sign=1739303258-pyDzqDbZtIc3OnNFJhUmorbjRly09hUf-0-2d68152142e91e28adb6d306ed087022)
发送消息abc,同时启动“显示”和“音乐”。
发送随机信息
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/44_03.jpg?sign=1739303258-T1B9Lflc9ORbOncZ89eFKG9luoIYTvTS-0-03e504e47642b17af35013deca677bf5)
显示随机数和发送随机数。
运算
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_01.jpg?sign=1739303258-YLsL2ucdbKzElH91LGSwmMnUwSU9x009-0-43842f087b9a98531459ab8adffd12ee)
认识图标:动态数字(变量)
加法
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_02.jpg?sign=1739303258-l74GvjB2DP9SDOXucrLn9wMY9DKlnt3S-0-3fced2a28a8105ea2cac6c52ce5e55bb)
使用WeDo 2.0编程:3+6=9
常用运算程序
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_03.jpg?sign=1739303258-ErWckzAuRdMi4s9iVWo9VpNFXPbJjRpv-0-08852d95c96885ca6f5504d822d1a96f)
乘于速度
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_04.jpg?sign=1739303258-lDQV1d4Z8MuI4bAacnIMuB7DrYL3kAzZ-0-9e80990669f725f1b9c2214f8f0dfa38)
降低速度