如何用Python画一些简单形状你知道吗

import turtle as t
import math
t.pensize(3)
t.tracer(10)
t.hideturtle()
start_x = -200
for y in range(-150,150,5):
 t.penup()
 t.goto(start_x,y)
 t.pendown()
 for x in range(-200,200,1):
  if ((y-50*(math.cos(0.05*x)) <= 80) and
(y-50*(math.cos(0.05*x)) >= 60)):
t.pencolor('yellow')
  elif ((y-50*(math.cos(0.05*x)) <= 40) and
(y-50*(math.cos(0.05*x)) >= -20)):
t.pencolor('blue')
  elif ((y-50*(math.cos(0.05*x)) <= -20) and
(y-50*(math.cos(0.05*x)) >= -80)):
t.pencolor('red')
  elif ((y-50*(math.cos(0.05*x)) <= -60) and
(y-50*(math.cos(0.05)) <= -80)):
t.pencolor('green')
  else:
t.pencolor('black')
  t.setx(x)
t.update()
t.done()

import turtle as t
t.speed(0)
t.tracer(20)
t.hideturtle()
t.colormode(255)
angle = 90
for x in range(255,0,-5):
 for n in range(360//angle):
  t.pencolor((x,255,255))
  t.fillcolor((25,x,255))
  t.begin_fill()
  for i in range(2):
t.forward(x)
t.right(angle)
t.forward(x)
t.right(180-angle)
  t.end_fill()
  t.right(angle)
t.update()
t.done()

import turtle as t
t.speed(0)
t.tracer(20)
t.colormode(255)
angle = 60
angle2 = 3
for x in range(255,0,-5):
 for n in range(360//angle):
  t.pencolor((x,255,255))
  t.fillcolor((255,x,255))
  t.begin_fill()
  for i in range(2):
t.forward(x)
t.right(angle)
t.forward(x)
t.right(180-angle)
  t.end_fill()
  t.right(angle)
 t.right(angle2)
t.update()
t.done()

from turtle import * 
colormode(255)
tracer(5)
a1=39
a2=1
for x in range(255,0,-5):
 pencolor(x,255,255)
 fillcolor(255,x,255)
 for y in range(360//a1):
  begin_fill()
  for z in range(2):
fd(x)
rt(a1)
fd(x)
rt(180-a1)
  end_fill()
  rt(a1)
 rt(a2)
update()
ht()
done()

import turtle as t
t.speed(0)
t.hideturtle()
t.penup()
t.setx(-200)
t.pendown()
r = 20
i = 6
for x in range(10):
 if x % 2 == 0:
  t.fillcolor("skyblue")
  t.begin_fill()
  t.circle(r)
  t.end_fill()
  add = 0
 else:
  t.fillcolor("green")
  t.begin_fill()
  for n in range(4):
t.forward(r*2)
t.left(90)
  t.end_fill()
  add = r*2
 t.penup()
 t.forward(r+i+add)
 t.pendown()
t.done()

import turtle as t
t.pensize(5)
t.tracer(10)
t.hideturtle()
start_x = -200
for y in range(-150,150,20):
 t.penup()
 t.goto(start_x,y)
 t.pendown()
 for x in range(-200,200,1):
  if ((x < 100 and x > 0) and 
(y < 80 and y > 0)):
t.pencolor('yellow')
  elif ((x < 100 and x > 0) and
(y < 0 and y > -80)):
t.pencolor('blue')
  elif ((x < 0 and x > -100) and
(y < 80 and y > 0)):
t.pencolor('red')
  elif ((x < 0 and x > -100) and
(y < 0 and y > -80)):
t.pencolor('orange')
  else:
t.pencolor('green')
  t.setx(x)
t.update()
t.done()

import turtle as t
t.pensize(5)
t.tracer(10)
t.hideturtle()
start_x = -200
for y in range(-150,150,20):
 t.penup()
 t.goto(start_x,y)
 t.pendown()
 for x in range(-200,200,1):
  if ((y-x <= 40) and
(y-x >= -40)):
t.pencolor('yellow')
  elif ((y+x <= 40) and
(y+x >= -40)):
t.pencolor('blue')
  else:
t.pencolor('green')
  t.setx(x)
t.update()
t.done()

import turtle as t
t.speed(0)
t.tracer(20)
t.hideturtle()
t.colormode(255)
angle = 60
for x in range(255,0,-5):
 for n in range(360//angle):
  t.pencolor((x,255,255))
  t.fillcolor((255,x,255))
  t.begin_fill()
  for i in range(2):
t.forward(x)
t.right(angle)
t.forward(x)
t.right(180-angle)
  t.end_fill()
  t.right(angle)
t.update()
t.done()