python用海龟画一张山水画

A：可以使用Python标准库中的turtle模块来画一张山水画，代码如下：

import turtle

# 设置画布和画笔
screen = turtle.Screen()
pen = turtle.Turtle()

# 画天空
screen.bgcolor("#00BFFF")  # 天空颜色为淡蓝色
pen.penup()
pen.goto(-300, 250)  # 画笔移动到左上角
pen.pendown()
pen.begin_fill()
pen.color("#FFFFFF")  # 白色
for i in range(2):
    pen.forward(600)
    pen.right(90)
    pen.forward(150)
    pen.right(90)
pen.end_fill()

# 画山
pen.penup()
pen.goto(-200, 60)
pen.pendown()
pen.begin_fill()
pen.color("#90EE90")  # 山的颜色为淡绿色
pen.right(45)
pen.forward(300)
pen.right(90)
pen.forward(300)
pen.right(135)
pen.forward(500)
pen.end_fill()

# 画树
pen.penup()
pen.goto(180, -100)
pen.pendown()
pen.color("#8B4513")  # 树干颜色为棕色
pen.pensize(20)  # 树干宽度为20
pen.right(90)
pen.forward(150)
pen.color("#228B22")  # 树叶颜色为深绿色
pen.pensize(1)  # 树叶宽度为1
pen.begin_fill()
pen.circle(100)
pen.end_fill()

screen.mainloop()  # 等待画布关闭

运行后，就可以得到一张简单的山水画了。效果如下：