用python turtle画人物素描

好的，我可以教你用Python Turtle库画人物素描。首先，我们需要导入Turtle库：

import turtle

然后，我们需要设置画布的大小和背景颜色：

turtle.setup(800, 800)
turtle.bgcolor('white')

接着，我们需要定义一个函数来画人物素描：

def draw_sketch():
    # 画头部
    turtle.pensize(2)
    turtle.penup()
    turtle.goto(0, 100)
    turtle.pendown()
    turtle.circle(50)
    
    # 画眼睛
    turtle.penup()
    turtle.goto(-20, 120)
    turtle.pendown()
    turtle.circle(10)
    turtle.penup()
    turtle.goto(20, 120)
    turtle.pendown()
    turtle.circle(10)
    
    # 画鼻子
    turtle.penup()
    turtle.goto(0, 100)
    turtle.pendown()
    turtle.right(90)
    turtle.forward(20)
    turtle.left(135)
    turtle.forward(30)
    turtle.right(135)
    turtle.forward(30)
    
    # 画嘴巴
    turtle.penup()
    turtle.goto(-25, 80)
    turtle.pendown()
    turtle.left(90)
    turtle.circle(25, 180)
    
    # 画身体
    turtle.penup()
    turtle.goto(0, 50)
    turtle.pendown()
    turtle.forward(100)
    turtle.right(90)
    turtle.forward(150)
    turtle.right(90)
    turtle.forward(100)
    turtle.right(90)
    turtle.forward(150)
    
    # 画手臂
    turtle.penup()
    turtle.goto(-100, 50)
    turtle.pendown()
    turtle.right(45)
    turtle.forward(75)
    turtle.right(45)
    turtle.forward(50)
    turtle.right(45)
    turtle.forward(75)
    turtle.penup()
    turtle.goto(100, 50)
    turtle.pendown()
    turtle.left(45)
    turtle.forward(75)
    turtle.left(45)
    turtle.forward(50)
    turtle.left(45)
    turtle.forward(75)
    
    # 画腿
    turtle.penup()
    turtle.goto(-50, -100)
    turtle.pendown()
    turtle.right(45)
    turtle.forward(100)
    turtle.right(45)
    turtle.forward(50)
    turtle.right(45)
    turtle.forward(100)
    turtle.penup()
    turtle.goto(50, -100)
    turtle.pendown()
    turtle.left(45)
    turtle.forward(100)
    turtle.left(45)
    turtle.forward(50)
    turtle.left(45)
    turtle.forward(100)
    
    # 结束
    turtle.hideturtle()

最后，我们只需要调用这个函数就可以画出人物素描了：

draw_sketch()

完整代码如下：

import turtle

def draw_sketch():
    turtle.setup(800, 800)
    turtle.bgcolor('white')
    turtle.pensize(2)
    turtle.penup()
    turtle.goto(0, 100)
    turtle.pendown()
    turtle.circle(50)
    turtle.penup()
    turtle.goto(-20, 120)
    turtle.pendown()
    turtle.circle(10)
    turtle.penup()
    turtle.goto(20, 120)
    turtle.pendown()
    turtle.circle(10)
    turtle.penup()
    turtle.goto(0, 100)
    turtle.pendown()
    turtle.right(90)
    turtle.forward(20)
    turtle.left(135)
    turtle.forward(30)
    turtle.right(135)
    turtle.forward(30)
    turtle.penup()
    turtle.goto(-25, 80)
    turtle.pendown()
    turtle.left(90)
    turtle.circle(25, 180)
    turtle.penup()
    turtle.goto(0, 50)
    turtle.pendown()
    turtle.forward(100)
    turtle.right(90)
    turtle.forward(150)
    turtle.right(90)
    turtle.forward(100)
    turtle.right(90)
    turtle.forward(150)
    turtle.penup()
    turtle.goto(-100, 50)
    turtle.pendown()
    turtle.right(45)
    turtle.forward(75)
    turtle.right(45)
    turtle.forward(50)
    turtle.right(45)
    turtle.forward(75)
    turtle.penup()
    turtle.goto(100, 50)
    turtle.pendown()
    turtle.left(45)
    turtle.forward(75)
    turtle.left(45)
    turtle.forward(50)
    turtle.left(45)
    turtle.forward(75)
    turtle.penup()
    turtle.goto(-50, -100)
    turtle.pendown()
    turtle.right(45)
    turtle.forward(100)
    turtle.right(45)
    turtle.forward(50)
    turtle.right(45)
    turtle.forward(100)
    turtle.penup()
    turtle.goto(50, -100)
    turtle.pendown()
    turtle.left(45)
    turtle.forward(100)
    turtle.left(45)
    turtle.forward(50)
    turtle.left(45)
    turtle.forward(100)
    turtle.hideturtle()

draw_sketch()

运行代码，就可以看到画出的人物素描了。