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火眼金睛 说说过程实现的功能

火眼金睛 说说过程实现的功能. TO SBX :B REPEAT 4 [ FD :B RT 360/ 4 ] END 运行:SBX 30. 步长为 30 的正四边形. TO YUAN :R REPEAT 36[FD :R *3.14/18 RT 360/36 ] END 运行: YUAN 30. 半径为30的圆. 步长为40的正7角星. TO QJX :J REPEAT J[ FD 40 RT 180-180/:J ] END 运行:QJX 7.

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火眼金睛 说说过程实现的功能

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  1. 火眼金睛 说说过程实现的功能 TO SBX :B REPEAT 4[ FD :B RT 360/4 ] END 运行:SBX 30 • 步长为30的正四边形 TO YUAN :R REPEAT 36[FD :R*3.14/18 RT 360/36 ] END 运行: YUAN 30 • 半径为30的圆 • 步长为40的正7角星 TO QJX :J REPEAT J[ FD 40 RT 180-180/:J ] END 运行:QJX 7

  2. 大显身手 说说这些图形有什么特点? 由固定点开始由内向外逐圈旋绕而形成的曲线 ——螺旋线

  3. 执教人:景明佳园小学 王静雯 小学信息技术logo程序教学研究 画螺旋线

  4. 猜猜过程实现的功能 TO SBX:B FD :B RT 360/4 SBX :B END TO SBX :B REPEAT 4[ FD :B RT 360/4 ] END 运行:SBX 30 TO SBLX :B FD :B RT 360/4 SBLX :B+10 end SBLX :B+10 运行:SBLX 30 运行:SBX 30 分步执行命令: FD 30 RT 90 FD 30 RT 90 FD 30 RT 90 FD 30 RT 90 FD 30 RT 90 …… 分步执行命令: FD 30 RT 90 FD 30 RT 90 FD 30 RT 90 FD 30 RT 90 分步执行的命令: FD 30RT 90 FD 40 RT 90 FD 50 RT 90 FD 60 RT 90 FD 70 RT 90 ……

  5. 四边形螺旋线 TO SBLX :B FD :B RT 360/4 SBLX :B+10 END IF :B>100 THEN STOP 100 初始步长 30 SBLX :B+10 最终步长 100 步长增加值10 运行:SBLX 30 30

  6. 100 10 30 要求:1、以小组为单位,确定需要研究的因素以及实验的次数; 2、过程分别在不同编辑窗口中编辑,过程名必须不同 3、所有图形在一个图形窗口中显示但不重叠;

  7. 小海龟本领大 四边螺旋变化多 是什么因素让四边形螺旋线变化纷呈? 最终步长 初始步长 步长增加值

  8. TO SBLX :B IF :B>100 THEN STOP FD :B RT 360/4 SBLX :B+10 END 运行: SBLX 30 初始步长30 最终步长100 初始步长100 最终步长30

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