用Python如何写一个贪吃蛇游戏

您可以使用 Python 编写一个贪吃蛇游戏，具体实现如下：

1. 导入必要的库：

import turtle
import time
import random

2. 创建游戏窗口：

win = turtle.Screen()
win.title("Snake Game")
win.bgcolor("black")
win.setup(width=600, height=600)

3. 创建蛇头，食物和分数：

snake = turtle.Turtle()
snake.speed(0)
snake.shape("square")
snake.color("white")
snake.penup()
snake.goto(0, 0)
snake.direction = "stop"

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

score = turtle.Turtle()
score.speed(0)
score.color("white")
score.penup()
score.hideturtle()
score.goto(0, 260)
score.write("Score: 0", align="center", font=("Courier", 24, "normal"))

4. 定义蛇的移动函数：

def move():
    if snake.direction == "up":
        y = snake.ycor()
        snake.sety(y + 20)
    if snake.direction == "down":
        y = snake.ycor()
        snake.sety(y - 20)
    if snake.direction == "right":
        x = snake.xcor()
        snake.setx(x + 20)
    if snake.direction == "left":
        x = snake.xcor()
        snake.setx(x - 20)

5. 定义蛇的方向控制函数：

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

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

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

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

6. 绑定键盘事件：

win.listen()
win.onkeypress(go_up, "Up")
win.onkeypress(go_down, "Down")
win.onkeypress(go_right, "Right")
win.onkeypress(go_left, "Left")

7. 播放游戏：

while True:
    win.update()
    if snake.xcor() > 290 or snake.xcor() < -290 or snake.ycor() > 290 or snake.ycor() < -290:
        time.sleep(1)
        snake.goto(0, 0)
        snake.direction = "stop"
        score.clear()
        score.write("Score: {}".format(0), align="center", font=("Courier", 24, "normal"))
        # 隐藏尾巴
        for segment in segments:
            segment.goto(1000, 1000)
        # 清空尾巴列表
        segments.clear()

    if snake.distance(food) < 20:
        x = random.randint(-280, 280)
        y = random.randint(-280, 280)
        food.goto(x, y)

        new_segment = turtle.Turtle()
        new_segment.speed(0)
        new_segment.shape("square")
        new_segment.color("grey")
        new_segment.penup()
        segments.append(new_segment)

        score_count += 10
        score.clear()
        score.write("Score: {}".format(score_count), align="center", font=("Courier", 24, "normal"))

    # 显示尾巴
    for index in range(len(segments) - 1, 0, -1):
        x = segments[index - 1].xcor()
        y = segments[index - 1].ycor()
        segments[index].goto(x, y)

    if len(segments) > 0:
        x = snake.xcor()
        y = snake.ycor()
        segments[0].goto(x, y)

    move()

    for segment in segments:
        if segment.distance(snake) < 20:
            time.sleep(1)
            snake.goto(0, 0)
            snake.direction = "stop"
            score.clear()
            score.write("Score: {}".format(0), align="center", font=("Courier", 24, "normal"))
            # 隐藏尾巴
            for segment in segments:
                segment.goto(1000, 1000)
            # 清空尾巴列表
            segments.clear()

            score_count = 0
            score.clear()
            score.write("Score: {}".format(score_count), align="center", font=("Courier", 24, "normal"))

    time.sleep(delay)

以上就是用 Python 写一个贪吃蛇游戏的详细过程。