![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=1739465414-Y0fkZfq2GEwyeNDcIoAAViT2kSZQej6P-0-c8345120146fb6b8457fe2787ba9d27f)
电动机功率
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_02.jpg?sign=1739465414-clIHbrOlvWwi7lOJ3Ol1I7vInFzJU2Mw-0-4e56eee696a9cd754a5d50f5ddde82ae)
电动机等待
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_03.jpg?sign=1739465414-vCJTWSAq71yXbnwMa59wRa4VtS7VtqmZ-0-4fefa802c3e8b6eb6642a49c926e6aa8)
电动机停止
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_04.jpg?sign=1739465414-VmGVOdId9r11OvicfbObodFLVFtCJTHo-0-df75e1c1bc6ab5ef49936cff3a70e4d4)
电动机正转
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_05.jpg?sign=1739465414-7P9VUoGJOAa2pLhkatNQePaoWTj6OBus-0-0419d3e893ae21fbfb971e97ba3424cc)
电动机反转
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_06.jpg?sign=1739465414-4h1RIv7dflNGNc8UlKA07rmQRfJBro7G-0-f4586ed9bc7ed6eb0b4dc32476aabd50)
指示灯
2.显示图标
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_07.jpg?sign=1739465414-9fe9x863qg2bIBM972SjrW2rs4ewvQoJ-0-148358195f60a4f0e8b9a7c03963c95a)
图片
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_08.jpg?sign=1739465414-pkFIcl6261WoZOB3nKmeVhocSFa0D4rf-0-ca5f998ba3dbeb5ccf34bfdb5832f2c4)
文本
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_09.jpg?sign=1739465414-5nsIkGuW6KSH0jeCEJhGySGa0SMle3cT-0-85e00b046ba3c5d9e4ca6117f5760eac)
运算符
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_10.jpg?sign=1739465414-XuRD4lsF91ykUxaO2RJsSnxHnwqyEvYx-0-797acc9f37cb2bd89b046c9eed32e1f5)
中屏显示
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_11.jpg?sign=1739465414-yo28yV8i8d78JumM52PhNe7qQJng8gPI-0-d2d338d514c683f6d66a642e72722732)
播放音乐
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_12.jpg?sign=1739465414-1pFBgt5fPbv9RHAUjgOeKPVBH1BormZz-0-74ac7b858921130dca338063bec72e05)
全屏显示
3.流程控制
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_01.jpg?sign=1739465414-hlKnusGe7DYnxUpFhPNLyphzY6NNTCyt-0-cf28d6d3ac6cc5630ce6d891264f2cd8)
开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_02.jpg?sign=1739465414-EkHEd5f48cPg8UhXqqTwaAukgTpOPyU0-0-e1821ad54a8af7f6761e5c288e1cf19e)
按键开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_03.jpg?sign=1739465414-1ywGpFVXwr3fRulM9JK6FxwIPc3ldo36-0-38c69b7231e1894f8c24e49657f0644e)
信息开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_04.jpg?sign=1739465414-91jXELuXRyOPexqnugszDIeINiXMOIeI-0-018429d7547c0a486e2d169d02f34757)
信息发送
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_05.jpg?sign=1739465414-y3x7wJIqJAxJMb1Fo7RdHGvpVCAnomxR-0-489bf1515a2eaa1f74c084c119cc631a)
等待
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_06.jpg?sign=1739465414-XJ6saZx8BtQp5AwYdaSpoOIaq55e4BLu-0-fb2baf6b6407733a9106c54b17311918)
循环
4.赋值图标
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_07.jpg?sign=1739465414-XQZMMxxVZjYG8vuI3IsgnWQhxaF3h2b4-0-806b1dffd0173d6fdbf52c4b9fee5be4)
输入数字
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_08.jpg?sign=1739465414-PUsyIZAloWhyE2aE7wwqJg9yArn7jPPc-0-5bfa2b7f92fad3754b962f439ff8bfce)
输入文本
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_09.jpg?sign=1739465414-ogvw0eyPKADNwq3Ni21mm8IvcQEA6wuT-0-d7110a61d8e5b002316eabc9ec958054)
随机数字
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_10.jpg?sign=1739465414-fXJhGV4Pt2AfgHOcQRU8f5sZJyCPEMqa-0-89d5f873e629a699129518845a4f919c)
动态数字(变量)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_11.jpg?sign=1739465414-eU3rWyQThC4DtIlHa48VB92d6YTTNetX-0-d35088f86dfaf5e479b0390afd4b38e8)
检测声音
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_12.jpg?sign=1739465414-yg8iTsgPznWYWuvTplpsm6GB8cdIfsMa-0-1a1f34979483ad9598d6ee58d80ae7c4)
检测运动
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_13.jpg?sign=1739465414-EeeMGygfVkVcT24wQpidEVlG6nDGMz0c-0-5e31951b20f1ac7cf77d70175df2643e)
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=1739465414-FB0Qvsbg2UXxMWN3Qe3Ozxh8tF4V0iaP-0-ee43930ce2a8c228728d1d09f089f5dd)
后倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_02.jpg?sign=1739465414-xYREjTHsTSbXbl5Ymqdp59fAooF71yWj-0-9bccac93744f23c4f678fb1f7a7186f2)
前倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_03.jpg?sign=1739465414-qr0aS0oJ0erY9TseFTrQnL11dtn2cxh9-0-3b8b97155c3fa44b7fb5b4c56dd706a4)
右倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_04.jpg?sign=1739465414-tXHpUD2B8san3EOSKNKeeIAZY2UUTLPH-0-96b78d0e29ba6e06720beded51bc12d8)
左倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_05.jpg?sign=1739465414-eNbkL21VT74C5hJIpDQJ566eFL5I1uDo-0-c73744cbeb27cdeedbb62e52f76f1695)
平置
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_06.jpg?sign=1739465414-Gt2a4n8ckqgydndZ9O5uj8f3Ps06pxwr-0-c5df6bf4f0ae2950eaf997ba69bff4fa)
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=1739465414-FBU4NelBptZQmIXrolehEEvrmNjGwYXX-0-19ec0ca6a8d76aef4031d1e54509fb56)
远近(任何距离变化)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_08.jpg?sign=1739465414-E7sOYkQy2aEJIbOgYPuiOcRH9FAPnJsH-0-851d546f41642e4b65edac1944210894)
靠近
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_09.jpg?sign=1739465414-JvOfrNbT3BBv2ITNV0AQBJiGVuTFcyzQ-0-1b41404d9d3fd588eec0e2876586f91d)
远离
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_10.jpg?sign=1739465414-DsBXJ5LBp1fCIc3ff2zyeAPGGAf8Zy1f-0-10a6e6efc94fdb35c6e0bf643f15de51)
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=1739465414-AynIuZZpKd4OG2opb96mb75CqVeLMNer-0-1e06abb8a2822f67bd513a2c6d58b97c)
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=1739465414-1Mek6yUPMMzEMXCxcp1wvkdM0IStZHhn-0-4a419a3d03f0df3b77cf66eb04b28b2f)
移近和离开
循环
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/43_03.jpg?sign=1739465414-HmonL7iAm4EhALUu984uJgHJt6BRVZSD-0-3946334872e45f12e4ad8f0e4130864a)
循环4次
并行程序
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/44_01.jpg?sign=1739465414-fYHxPIHZ1grS2sOXUejI69aPkNVd8Ug9-0-4d4a83194fa54e13831de7047137e303)
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=1739465414-XpfvXPcDhTbrD9IEwDjZ6pfrZnuS4GcL-0-166df73fe2ba391b72188a66d77827f9)
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=1739465414-6yebqDfAaFPvzUxNBEAqHrtDdRIlvaTN-0-4d0bfe0b749f4fb3a27e3c8432294ec4)
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=1739465414-1dT8oH6pZEUkAnNmcN7Fxg5vIZCpIsVJ-0-bb8ec0165e7218d49416f2cf9ec8828c)
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=1739465414-cSchRBB65NK8VK6OxCsHe1XWT5NSbF4b-0-f37c5e1dc025791b80702fcb821f6de8)
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=1739465414-eZ7MEa56xzHQW0b1B4YGPdnJbZygjHew-0-d8a9aac7111ba4fe4339972be4b974d8)
乘于速度
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_04.jpg?sign=1739465414-QYPLC1hpforCNSiQ84F9E5vr2HVqKuBL-0-431faee8390b3e7784b2f1e476556cf3)
降低速度