![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=1739225985-lBPS3qsj5qKAYdgRdPgO4igjRWMGTJzx-0-347b3fd9cc6b7047703990c039541924)
电动机功率
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_02.jpg?sign=1739225985-UpsDyNLg2o9mBhRaRFSVaALnq684rSBa-0-a4378bda38614c0373f564950432a08c)
电动机等待
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_03.jpg?sign=1739225985-yDjh2FjjnLUpsofGx9q4Qmlqity3BSye-0-7f49cf4c2a52e8ef836ded67774f2b32)
电动机停止
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_04.jpg?sign=1739225985-736FYdq4ymZjANSPMjS2RAk7w8rl1L2C-0-173442ebe8d6e514fa4992898d4e8946)
电动机正转
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_05.jpg?sign=1739225985-8tqZT93PW40FTnlPMtWBsPaE739UN6jm-0-fe0f5c498cef6761927f29f558bc7d6d)
电动机反转
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_06.jpg?sign=1739225985-mMduDOiuFwZyk3craunFCGtcRgxajGZ7-0-5cd0ca4d732b60545477f4126d736cfa)
指示灯
2.显示图标
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_07.jpg?sign=1739225985-d2iMmNhqsAW0rfw7LkwVfMLvazvb7X1l-0-0f006d9a77117f1cdbcae690f28cfc14)
图片
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_08.jpg?sign=1739225985-FeaohJM3bEthNkeV4MaxgAMhwVrA5Apf-0-e5c1d8fe7398823cba8456c13cada51c)
文本
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_09.jpg?sign=1739225985-DCwRR9wwdKsKl86MCxQpd5Uh13BVDtpT-0-c5767bcf27e492c981df80cd4a1175be)
运算符
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_10.jpg?sign=1739225985-oWIqmwTQROQhvNeCBuiievVRLPVNWk2v-0-0e6cf58167b8784ed6417dd6463cbd79)
中屏显示
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_11.jpg?sign=1739225985-BNFsLRg0dyHJinTzA6qoeerFk8f3a8qQ-0-4340a83cf4d0884873bcd000eead81b4)
播放音乐
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/40_12.jpg?sign=1739225985-uFiIMeue8ktcYYtIjL2Ft6yv1XQX71c6-0-176fe3ae4e5ef32e1c1cd4e0b2f27547)
全屏显示
3.流程控制
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_01.jpg?sign=1739225985-o4Vy3JjAz0KuqFfzcvIsmemiMxHXMNUW-0-32620955b28dd87ea80befdeec8c4806)
开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_02.jpg?sign=1739225985-lpIeTNhtZLqYNtHEY5ORnoZKqTqsOExc-0-b7dde2a3f82d759c91e544addc14261b)
按键开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_03.jpg?sign=1739225985-gZBzYQagVrUArzCb1CoZI1XJvj3EiE34-0-d5b9e09a11b7c2edd5f62286983f589c)
信息开始
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_04.jpg?sign=1739225985-xHtzaalx7lieJPRmQCqCJbg5TIwuPoYd-0-6074ac7e64e778a6490647367be16e31)
信息发送
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_05.jpg?sign=1739225985-Yp4o7in4fdGXgqBBGVYBaRSVG8ZdRdIx-0-f5a4c30c2d66c720aa9fef6098a85a70)
等待
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_06.jpg?sign=1739225985-D3pGq8iQjMEI0m7fo3OQrvPR4kIW2xCf-0-8f359fec087a4115f95777937a179ce0)
循环
4.赋值图标
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_07.jpg?sign=1739225985-RFtMN2hL50wPLxlapMIxf2x3SjErH1qS-0-e4a23355fd0549b7726cd450d51520b9)
输入数字
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_08.jpg?sign=1739225985-wQjC53JckRkrRWWcEpazk9HLdfZu8p5p-0-43c6bffd181f1e480657ed868512e18c)
输入文本
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_09.jpg?sign=1739225985-K2Wun0U9Spc0WhMISIoc9af1zoE4SMZ5-0-c05a1605ca5c6fd041e05cd069504064)
随机数字
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_10.jpg?sign=1739225985-ZuzGkrDtk8y0vi5uaImQHX48yTkXjCBD-0-3246efdd2bb32dad2d137d9919ccedf2)
动态数字(变量)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_11.jpg?sign=1739225985-9PrPwxo1LwLeRqFH7kkMcpsNVRWw3dgV-0-c85cee9748588551697440e54cee13e8)
检测声音
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_12.jpg?sign=1739225985-2EwG6KVnN0lXK6kHvG4qH2AxJzT4pAQB-0-26d72e5ca0d5a86c1ad5a9059107e2d5)
检测运动
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/41_13.jpg?sign=1739225985-OaOgU9xilJRdrMeL8DFJBLDKaVcTaMyv-0-b1f95e145cb0916bf3f890126dc385a9)
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=1739225985-DI1tsgoIEKOjuxWV56o09s8SNPfSbU0o-0-c88ca26ee48de3aed973cc14865161ff)
后倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_02.jpg?sign=1739225985-ZTEvGV5R8qhzU0vgqOKixcQY1D3EmwIu-0-48c868f1322994724b17ca5b27134d75)
前倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_03.jpg?sign=1739225985-uvity7p39KCReE0Ws6NjJVuJx2KIjbot-0-214915d430cc960c838d1716ac961c2d)
右倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_04.jpg?sign=1739225985-AeeWQtk22PzyZC128zSlRZwYjH3tPlje-0-a4f413fbe931324b53ceabcdea4ae8d6)
左倾
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_05.jpg?sign=1739225985-AmamaelEVJEXLs2knrchS3zjMlJoPlrZ-0-4b32186b66a39634d267719676d2601d)
平置
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_06.jpg?sign=1739225985-UyF77IhgAf04ZXYn1FXE4rYBuhU1lLXC-0-dcc72c7d37b76fabbc4021f10fe8c0a6)
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=1739225985-bZVY6sb8nTTPklf7NMWbfcntoNQQJPVk-0-03c8f168f17358a1e31cb52f7db93797)
远近(任何距离变化)
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_08.jpg?sign=1739225985-cDsBkEcvYLsln5hEp0AFo0EZsCyhsJgV-0-d387b4b707fa9a442891fabdc23552cd)
靠近
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_09.jpg?sign=1739225985-KAK6OtSkCsw8rsqEwTP07miAQ2Jjfg42-0-cbf25fb2813b86786dc3484706acc406)
远离
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/42_10.jpg?sign=1739225985-qaDqOIstUoiybqMNlbKRsjCqPS74UB8i-0-c8768dfad5e36d6879f098ea11e0848d)
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=1739225985-t1QtznbB5Xij49Y1yUgRMwAvOqxmC7Hd-0-eb116d8f26d7f5fb53b76b8797061ed6)
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=1739225985-QU6MyemIUv25ViHBLCD4iqEbMWYfXrSk-0-62452fbb0a193e75f263742b691a1ba8)
移近和离开
循环
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/43_03.jpg?sign=1739225985-MhXvkIMfILKIPi7bHHSxXMLL3UZWS4uP-0-6ae19dea828232537272c8c584ea123c)
循环4次
并行程序
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/44_01.jpg?sign=1739225985-rw7bJHvA6Px8TtvEtF0xwYPLNhLx5Q8z-0-b6dd4fdfad0c87b91ad2e0ea846b7dd2)
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=1739225985-KWUO1VwTZr4O0KaZPxVv8QKWuXo8VJ5f-0-77249ab0b5c065a5f16f95f66227b03a)
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=1739225985-S5DSg2TsnNHIZ9mXcHv31GnwN4sZZDIG-0-2db3b20fb671975ecf19bc8ee64a4628)
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=1739225985-rcACDsDvckkYXG6UxeIExnSGN2tsVEQw-0-25d00e33a49484469c6bec470bf23756)
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=1739225985-M3SwGBKFkhAtmirWSrnnnmbZvgIa4hwB-0-52867b6a575441cae7e629a53009e653)
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=1739225985-FM2bBTXv0rh8Qzu317RiayAgMSXd6lLD-0-6c900ba92599a99153de9c65d31a6674)
乘于速度
![](https://epubservercos.yuewen.com/896E45/16923818205021606/epubprivate/OEBPS/Images/45_04.jpg?sign=1739225985-g9iSIyqhAHZFvBgFRsMKYFFDcO17ixCO-0-dcf6e2917a806f772c5b089263326b65)
降低速度