用 python 写贪吃蛇

好的，以下是用 Python 写贪吃蛇的代码示例：

import turtle
import time
import random

delay = 0.1

# Set up the screen
window = turtle.Screen()
window.title("Snake Game")
window.bgcolor("green")
window.setup(width=600, height=600)
window.tracer(0)

# Snake head
head = turtle.Turtle()
head.speed(0)
head.shape("square")
head.color("black")
head.penup()
head.goto(0,0)
head.direction = "stop"

# Snake food
food = turtle.Turtle()
food.speed(0)
food.shape("circle")
food.color("red")
food.penup()
food.goto(0,100)

# Snake body
segments = []

# Functions
def move():
    if head.direction == "up":
        y = head.ycor()
        head.sety(y + 20)

    if head.direction == "down":
        y = head.ycor()
        head.sety(y - 20)

    if head.direction == "right":
        x = head.xcor()
        head.setx(x + 20)

    if head.direction == "left":
        x = head.xcor()
        head.setx(x - 20)

def up():
    if head.direction != "down":
        head.direction = "up"

def down():
    if head.direction != "up":
        head.direction = "down"

def right():
    if head.direction != "left":
        head.direction = "right"

def left():
    if head.direction != "right":
        head.direction = "left"

# Keyboard bindings
window.listen()
window.onkeypress(up, "Up")
window.onkeypress(down, "Down")
window.onkeypress(right, "Right")
window.onkeypress(left, "Left")

# Main game loop
while True:
    window.update()

    # Check for collision with the border
    if head.xcor() > 290 or head.xcor() < -290 or head.ycor() > 290 or head.ycor() < -290:
        time.sleep(1)
        head.goto(0,0)
        head.direction = "stop"

        # Hide the segments
        for segment in segments:
            segment.goto(1000, 1000)

        # Clear the segments list
        segments.clear()

    # Check for collision with the food
    if head.distance(food) < 20:
        # Move the food to a random position
        x = random.randint(-290, 290)
        y = random.randint(-290, 290)
        food.goto(x,y)

        # Add a new segment
        new_segment = turtle.Turtle()
        new_segment.speed(0)
        new_segment.shape("square")
        new_segment.color("grey")
        new_segment.penup()
        segments.append(new_segment)

    # Move the end segments first in reverse order
    for index in range(len(segments)-1, 0, -1):
        x = segments[index-1].xcor()
        y = segments[index-1].ycor()
        segments[index].goto(x, y)

    # Move segment 0 to where the head is
    if len(segments) > 0:
        x = head.xcor()
        y = head.ycor()
        segments[0].goto(x,y)

    move()

    # Check for collision with the body
    for segment in segments:
        if segment.distance(head) < 20:
            time.sleep(1)
            head.goto(0,0)
            head.direction = "stop"

            # Hide the segments
            for segment in segments:
                segment.goto(1000, 1000)

            # Clear the segments list
            segments.clear()

    time.sleep(delay)

window.mainloop()

希望代码能够对你有所帮助！