Shulou(Shulou.com)06/03 Report--

This article mainly introduces how python uses the Turtle library to draw and write names, which has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Turtle library is a very popular Python language to draw images of the library, using this library will generate a canvas, in the canvas we can not see a default to the center point as the origin of the axis, in the origin there will be an initial default to the east of the brush (arrow), we generally call this arrow turtle, the arrow is facing the head of the sea turtle.

This dynamic picture shows a name drawing I drew using the Turtle library, with the following code:

Import timeimport turtlefrom random import randomt = turtlet.speed (3) t.hideturtle () t.color ('black') t.pensize (10) #-t.penup () t.goto (- 110,60) t.pendown () t.forward (100) # | t.penup () t.goto (- 60,125) t.right (90) t.pendown () t.forward () #) t.penup () t.goto (- 60) 45) t.right (45) t.pendown () t.forward (90) #, t.penup () t.goto (- 60,38) t.left (90) t.pendown () t.forward (40) # Primary one t.penup () t.goto (20,60) t.left (45) t.pendown () t.forward (90) # | t.penup () t.goto (65) T.right (90) t.pendown () t.forward (123) # freshman t.penup () t.goto (0,-5) t.left (90) t.pendown () t.forward (130) # Primary one t.penup () t.goto (20,-65) t.pendown () t.forward (90) # | t.penup () t.goto (65) -14) t.right (90) t.pendown () t.forward (120) # freshman t.penup () t.goto (0,135) t.left (90) t.pendown () t.forward (130) # draw a circle t.color ('red') t.pensize (3) t.penup () t.goto (15,200) t.pendown () t.circle (180) t.exitonclick () function

explain

Hideturtle

Hide brushes

Speed

Brush speed, 1-10. 1 is the slowest, 10 is the fastest.

Color

After that, you can pass parameters (2 parameters), which is not passed as the default setting. The first parameter is the brush color and the second parameter is the fill color.

Pensize

The bigger the brush, the thicker it is.

Penup

Pick up the brush, and then do not draw the track when the brush moves

Pendown

By default, the brush falls, and then the brush will draw the track.

Forward (num)

Brush motion, num is the number of motion pixels, that is, length

Right (a)

Rotate an angle to the right and clockwise in the brush direction

Left (a)

Rotate an angle to the left and counterclockwise in the brush direction

Goto (XBI y)

Move the brush to the axis xpeny position, and the track will be drawn under pendowm

Goto (XBI y)

Move the brush to the axis xpeny position, and the track will be drawn under pendowm

Circle (a)

Draw a circle with a radius of an at the center of the current point

Exitonclick

Click close, and the brush will not automatically exit the canvas after running.

The following is a big guy's code for painting cherry trees seen in the forum. The result is much more complex than the above, but it is easy to understand when you understand my above code. As an advanced, it will be shown to you:

Import turtle as Timport randomimport time# painted the torso of cherry blossoms (60 branch t) def Tree (branch, t): time.sleep (0.0005) if branch > 3: if 8

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