I've already povided the tutorials on how to do it above

###################################
# PROLOG SECTION
# archery_target.py
# Draws an archery target of three concentric circles using Turtle Graphics
# and then an animated arrow hitting the target.
#
# Tested with Python 2.6.1
# May 16, 2010
#
# 
###################################

###################################
# ENVIRONMENT SETUP SECTION
# Imports: turtle, time
###################################

# import turtle drawing routines
from turtle import *

# import the time routines
from time import sleep

###################################
# FUNCTION DEFINITION SECTION
# Definitions: draw_target(),
# erase_target(), move_arrow()
###################################

#
# define a function to draw a target at a location
# on the screen.
#
def draw_target(turtle,targetx,targety):
    turtle.speed("fast")
    #
    # draw the largest red circle
    #
    
    # lift the pen up (away from the window) so it doesn't draw a line as it moves
    turtle.up()
    
    #
    # move to the starting location
    #
    turtle.goto(targetx,targety+50)
    
    # the radius of the red circle is 150px
    turtle.sety(targety-150)
    # put the pen down (against the window) so it can begin to draw
    turtle.down()
    # set the color
    turtle.color("red")
    # set the pen width
    turtle.width(2)
    # call fill(1) before drawing the path
    turtle.fill(1)
    # draw the path
    turtle.circle(150)
    # call fill(0) after drawing the path
    turtle.fill(0)

    #
    # draw the middle blue circle
    #
    turtle.up()
    # the radius of the blue circle is 100px
    turtle.sety(targety-100)
    turtle.down()
    turtle.color("blue")
    turtle.fill(1)
    turtle.circle(100)
    turtle.fill(0)

    #
    # draw the green circle (the bulls-eye)
    #
    turtle.up()
    # the radius of the green circle is 50px
    turtle.sety(targety-50)
    turtle.down()
    turtle.color("green")
    turtle.fill(1)
    turtle.circle(50)
    turtle.fill(0)
    turtle.hideturtle()

    return

#
# define a function to erase a target at a location
# on the screen.
#
def erase_target(turtle,targetx,targety):
    sleep(1)
    
    # the radius of the circle is 150px
    #
    # move to the starting location
    #
    turtle.goto(targetx,targety-150)
    # put the pen down (against the window) so it can begin to draw
    turtle.down()
    # set the color for erasing the target
    turtle.color("white")
    # set the pen width
    turtle.width(2)
    # call fill(1) before drawing the path
    turtle.fill(1)
    # draw the path
    turtle.circle(150)
    # call fill(0) after drawing the path
    turtle.fill(0)
#
# define a function to move the arrow to the target
#
def move_arrow(arrow, ax, ay, targetx, targety):
    
    arrow.goto(ax,ay)
    arrow.setheading(arrow.towards(targetx,targety))
    arrow.showturtle()
    sleep(1)

    #
    # calculate steps to move the arrow to the center
    # of the target.
    #
    steps = 100
    dx = (targetx-ax)/float(steps)
    dy = (targety-ay)/float(steps)

    #
    # Move the arrow to the center of the target
    #
    for x in range(steps):
        ax = ax + dx
        ay = ay + dy
        arrow.goto(ax,ay)
        
    return

###################################
# PROCESSING INITIALIZATION SECTION
###################################

# create the drawing window
setup()
# create a title for the drawing window
title("archery target program")

# create a turtle to draw the target with
turtle = Turtle()

# set the location of the center of the target
targetx = 0
targety = 0

#
# Create an arrow as a turtle shape 
#
arrow = Turtle()
arrow.hideturtle()
arrow.penup()
# create an arrow shape
register_shape("myarrow",((-6,-96),(-6,0),(-18,0),(0,18),(18,0),(6,0),(6,-96),(-6,-96)))
arrow.shape("myarrow")

###################################
# PROCESSING SECTION
# Call functions to draw the target,
# move the arrow, and erase the target.
# 
###################################

# draw the target
draw_target(turtle,targetx,targety)

# now move the arrow to hit the target
ax = -200
ay = 0
move_arrow(arrow, ax, ay, targetx, targety)

# erase the target and draw a new one
erase_target(turtle,targetx,targety)

# set a new target location
targetx = 100
targety = 100
# draw the target
draw_target(turtle,targetx,targety)

# move the arrow to hit the target
move_arrow(arrow, ax, ay, targetx, targety)

###################################   
# CLEANUP, TERMINATION, AND EXIT SECTION
###################################

done()

Ok, but what I can do with this code?

What means:
I've already povided the tutorials on how to do it above

Code snippet need description for which use it is for.

Sorry guys! forgive my mistake. This code is desdigned to help those people who have difficulty moving increments.