There is only one necessary command to move the turtle. It is forward which has the mnemonic fd. When working with a robot (real) turtle as opposed to a graphics based (virtual) one, you might find that the turning commands left and right [lt & rt] move the turtle a little, accidentally.
When the turtle moves, it may draw a line as it goes depending on whether the pen is up or down at the time, and whether the current pen color is different from the background color.
A graphics based (virtual) turtle can also jump around the screen with setx, sety, and setxy
发布评论
评论（6）
查看此处找到的其他一些海龟命令...
海龟命令
BACK # # [BK]- 将海龟向后移动BACKGROUND ## [BG]- 设置背景颜色 (0-15)CLEARSCREEN [CS]- 清除屏幕而不移动海龟DRAW- 清除屏幕并带乌龟回家EACH- 告诉几个精灵，它们的数字在一个列表中，接受第二个列表中的命令，例如EACH [1 2] [SQUARE 10]FORWARD ## [FD]- 向前移动海龟FULLSCREEN- 全图形屏幕（与按 F5 相同）HEADING- 将海龟标题输出为数字 (0-359)HIDETURTLE [HT]- 制作海龟不可见HOME- 将海龟移动到屏幕中心，指向上方LEFT [LT]- 将海龟向左转动NODRAW [ND]- 进入清晰的文本模式screenNOWRAP- 防止绘图环绕屏幕PENCOLOR [PC]- 更改笔颜色PENDOWN [PD]- 海龟留下痕迹PENUP [PU]- 海龟停止留下踪迹RIGHT ## [RT]- 海龟右转SETHEADING [SETH]- 设置海龟航向，例如SETH 180SETSHAPE- 设置当前精灵形状 (0-7)SETX将海龟移动到指定的 x 坐标，例如SETX 50< /code>SETXY将海龟移动到指定的 x、y 坐标 例如。SETXY 50 50SETY将海龟移动到指定的 y 坐标，例如SETY 50SHAPE- 输出数字当前精灵形状的SHOWTURTLE [ST]- 使海龟可见SPLITSCREEN- 混合图形和文本屏幕（与按 F3 相同）STAMPCHAR- 使海龟在当前位置标记一个字符，例如STAMPCHAR "ATELL- 告诉指定的精灵接收命令，例如TELL 2TEXTSCREEN- 使用整个屏幕显示文本（与按 F1 相同）TOWARDS- 海龟的输出标题面向 X,Y 坐标，例如TOWARDS 0 0WRAP- 让海龟绘图环绕屏幕XCOR- 输出海龟当前的 x 坐标YCOR- 输出当前 y海龟的坐标ASPECT- 设置垂直屏幕比例因子，默认为 0.76直接从网站获取的样本：http://gaza.freehosting.net/logo/index.html
Check out some other turtle commands found here...
Turtle Commands
BACK ## [BK]- Move turtle backBACKGROUND ## [BG]- Set Background color (0-15)CLEARSCREEN [CS]- Clear Screen without moving turtleDRAW- Clear Screen and take turtle homeEACH- Tell several sprites, whose numbers are in a list, to accept commands in a second list, e.g.EACH [1 2] [SQUARE 10]FORWARD ## [FD]- Move turtle forwardFULLSCREEN- Full graphics screen (same as pressing F5)HEADING- Output turtle heading as a number (0-359)HIDETURTLE [HT]- Make turtle invisibleHOME- Move turtle to center of screen pointing upLEFT [LT]- Turn turtle leftNODRAW [ND]- Enter text mode with clear screenNOWRAP- Prevent drawings from wrapping around screenPENCOLOR [PC]- Change pen colorPENDOWN [PD]- Turtle leaves trailPENUP [PU]- Turtle ceases to leave trailRIGHT ## [RT]- Turn turtle rightSETHEADING [SETH]- Set turtle heading, e.g.SETH 180SETSHAPE- Set the current sprite shape (0-7)SETXMove the turtle to the specified x co-ordinates e.g.SETX 50SETXYMove the turtle to the specified x, y co-ordinates Eg.SETXY 50 50SETYMove the turtle to the specified y co-ordinate, e.g.SETY 50SHAPE- Output number of current sprite's shapeSHOWTURTLE [ST]- Make turtle visibleSPLITSCREEN- Mixed graphics and text screen (same as pressing F3)STAMPCHAR- Make the turtle stamp a character at the current location, e.g.STAMPCHAR "ATELL- Tell designated sprite to receive commands, e.g.TELL 2TEXTSCREEN- Use whole screen for text (same as pressing F1)TOWARDS- Output heading for turtle to face an X,Y coordinate, e.g.TOWARDS 0 0WRAP- Make turtle drawings wrap around the screenXCOR- Output current x co-ordinate of turtleYCOR- Output current y co-ordinate of turtleASPECT- Set verticle screen scale factor, default is 0.76Samples taken directly from website: http://gaza.freehosting.net/logo/index.html
徽标就是移动乌龟...你给它命令像这样：
你也可以做类似重复命令的事情：（
我能赢什么？8-）
Logo is all about moving the turtle... you give it commands like this:
You can do stuff like repeating commands too:
(What do I win? 8-)
哇！ 它还在吗？
这曾经有效。
Whoa! Is it still around?
That used to work.
我见过一些 LOGO 实现，您可以在其中使用本地化命令，例如：
甚至 NAPRZÓD（带有波兰语字母 Ó）。
LOGO 是一种很好的语言，可以教孩子们用他们的母语进行编程。
I've seen a few LOGO implementations where you can use localized commands like:
or even NAPRZÓD (with Polish letter Ó).
LOGO is nice language to teach kids programming in their native spoken language.
通过以正确的语法发出命令。 EG：
移动乌龟只有一个必要的命令。 它是
forward，具有助记符fd。 当使用机器人（真实）乌龟而不是基于图形（虚拟）的乌龟时，您可能会发现转向命令左和右[lt< /代码> &rt] 不小心将乌龟移动了一点。大多数实现也允许命令
向后< /code> [bk]。当乌龟移动时，它可能会画一条线，具体取决于当时笔是向上还是向下，以及当前笔的颜色是否与背景颜色不同。
基于图形的（虚拟）海龟还可以使用
setx、sety和setxy在屏幕上跳跃By issuing commands in the correct syntax. E.G.:
There is only one necessary command to move the turtle. It is
forwardwhich has the mnemonicfd. When working with a robot (real) turtle as opposed to a graphics based (virtual) one, you might find that the turning commandsleftandright[lt&rt] move the turtle a little, accidentally.Most implementations also allow the command
backwards[bk].When the turtle moves, it may draw a line as it goes depending on whether the pen is up or down at the time, and whether the current pen color is different from the background color.
A graphics based (virtual) turtle can also jump around the screen with
setx,sety, andsetxy尝试：
bk（后退）、fd（前进）、ld（左转度数）、rt(右转）。try:
bk(back),fd(forward),ld(left turn in degrees),rt(right turn).