效果，展示（视频效果展示）：
奔跑的线条
from turtle import *
import time
t1=Turtle()
t2=Turtle()
t3=Turtle()
t1.hideturtle()
t2.hideturtle()
t3.hideturtle()
t1.pencolor("red")
t2.pencolor("green")
t3.pencolor("blue")
t1.pensize(5)
t2.pensize(5)
t3.pensize(5)
t1.penup()
t2.penup()
t3.penup()
t1.goto(-50,50)
t2.goto(-40,50)
t3.goto(-30,50)
while 5>2:
for i in range(10):
t1.penup()
t2.penup()
t3.penup()
t1.goto(-50+30*i,50)
t2.goto(-40+30*i,50)
t3.goto(-30+30*i,50)
t1.pendown()
t2.pendown()
t3.pendown()
#t1.forward(10)
#t2.forward(10)
#t3.forward(10)
time.sleep(0.1)
t1.clear()
time.sleep(0.1)
t2.clear()
time.sleep(0.1)
t3.clear()
t1.penup()
t2.penup()
t3.penup()
t1.goto(-50+30*i,50)
t2.goto(-40+30*i,50)
t3.goto(-30+30*i,50)
t1.pendown()
t2.pendown()
t3.pendown()
t1.forward(30)
t2.forward(30)
t3.forward(30)
代码分享：
python
from turtle import *
import time
t1=Turtle()
t2=Turtle()
t3=Turtle()
t1.hideturtle()
t2.hideturtle()
t3.hideturtle()
t1.pencolor("red")
t2.pencolor("green")
t3.pencolor("blue")
t1.pensize(5)
t2.pensize(5)
t3.pensize(5)
t1.penup()
t2.penup()
t3.penup()
t1.goto(-50,50)
t2.goto(-40,50)
t3.goto(-30,50)
while 5>2:
for i in range(10):
t1.penup()
t2.penup()
t3.penup()
t1.goto(-50+30*i,50)
t2.goto(-40+30*i,50)
t3.goto(-30+30*i,50)
t1.pendown()
t2.pendown()
t3.pendown()
#t1.forward(10)
#t2.forward(10)
#t3.forward(10)
time.sleep(0.1)
t1.clear()
time.sleep(0.1)
t2.clear()
time.sleep(0.1)
t3.clear()
t1.penup()
t2.penup()
t3.penup()
t1.goto(-50+30*i,50)
t2.goto(-40+30*i,50)
t3.goto(-30+30*i,50)
t1.pendown()
t2.pendown()
t3.pendown()
t1.forward(30)
t2.forward(30)
t3.forward(30)