turtle庫是一個很經典的繪圖庫，其最初來自於1967年創造的logo編程語言，之後被Python編寫放到了Python的內置模塊中。網絡上有很多借助於turtle繪製精美圖像的案例。比如小豬佩奇、皮卡丘、柯基犬等等。

趁著新年假期還未結束，今天州的先生（https://zmister.com）為大家帶來一個動漫招財福鼠的繪製。

一、繪製鼠頭

首先，咱們（https://zmister.com）把鼠的頭給繪製了。鼠頭主要是由圓來構成，臉龐是一個大圓，耳朵、眉毛、眼睛、嘴角和鼻子也都是由不同弧度的圓構成。鼠頭的繪製代碼如下所示：

<code>def head():
    turtle.color('black')
    # 臉輪廓
    turtle.pd() # 落筆
    turtle.circle(50) # 畫一個半徑為50的圓
    turtle.pu() # 提筆
    # 右耳輪廓
    turtle.goto(50,60) # 移動到x=50,y=60的位置
    turtle.pd() # 落筆
    turtle.circle(30,260) # 畫一個半徑為30，角度為245的圓弧
    turtle.pu() # 提筆
    # 右耳耳紋
    turtle.goto(30,90)
    turtle.pd()
    turtle.seth(65)
    turtle.circle(-30,70)
    turtle.pu()
    # 左耳輪廓
    turtle.goto(-50,60)
    turtle.pd()
    turtle.seth(180) # 設置方向為西，
    turtle.circle(-30,260)
    turtle.pu()
    # 左耳耳紋
    turtle.goto(-30,90)
    turtle.pd() 

    turtle.seth(120)
    turtle.circle(30,70)
    turtle.pu()
    # 面部五官
    # 右側眉毛
    turtle.goto(5,80)
    turtle.seth(20)
    turtle.pd()
    turtle.circle(-25,40)
    turtle.pu()
    # 左側眉毛
    turtle.goto(-5,80)
    turtle.seth(160)
    turtle.pd()
    turtle.circle(25,40)
    turtle.pu()
    # 右側眼睛
    turtle.begin_poly()
    turtle.goto(8,60)
    turtle.seth(45)
    turtle.pd()
    turtle.circle(-15,120)
    turtle.pu()
    turtle.goto(8,60)
    turtle.seth(40)
    turtle.pd()
    turtle.circle(-15,100)
    turtle.pu()
    turtle.end_poly()
    # 左側眼睛
    turtle.goto(-8,60)
    turtle.seth(135)
    turtle.pd()
    turtle.circle(15,120)
    turtle.pu()
    turtle.goto(-8,60)
    turtle.seth(140)
    turtle.pd()
    turtle.circle(15,100)
    turtle.pu()
    # 鼻子
    # 鼻子上瓣
    turtle.goto(-6,45)
    turtle.seth(70)
    turtle.pd()
    turtle.circle(-6,150)
    turtle.pu()
    # 鼻子下瓣 

    turtle.goto(-6,45)
    turtle.seth(-70)
    turtle.pd()
    turtle.circle(6,150)
    turtle.pu()
    # 鼻線
    turtle.goto(0,40)
    turtle.seth(270)
    turtle.pd()
    turtle.forward(7)
    turtle.pu()
    # 上嘴線
    turtle.seth(200)
    turtle.pd()
    turtle.circle(-15,60)
    turtle.pu()
    turtle.goto(0,33)
    turtle.seth(-20)
    turtle.pd()
    turtle.circle(15,60)
    turtle.pu()
    # 下嘴線
    turtle.goto(10,33)
    turtle.seth(260)
    turtle.pd()
    turtle.circle(-15,65)
    turtle.pu()
    turtle.goto(-10,33)
    turtle.seth(280)
    turtle.pd()
    turtle.circle(15,65)
    turtle.pu()
    # 牙齒
    turtle.goto(4,33)
    turtle.seth(270)
    turtle.pd()
    turtle.forward(4)
    turtle.seth(180)
    turtle.forward(8)
    turtle.seth(90)
    turtle.forward(4)
    turtle.pu()
    # 鬍鬚
    turtle.pensize(2)
    turtle.goto(30,30)
    turtle.seth(8)
    turtle.pd()
    turtle.circle(-60,40)
    turtle.pu() 

    turtle.goto(30,25)
    turtle.seth(-5)
    turtle.pd()
    turtle.circle(-60,40)
    turtle.pu()
    turtle.goto(-30,30)
    turtle.seth(172)
    turtle.pd()
    turtle.circle(60,40)
    turtle.pu()
    turtle.goto(-30,25)
    turtle.seth(188)
    turtle.pd()
    turtle.circle(60,40)
    turtle.pu()
    # 睫毛
    turtle.pensize(1)
    turtle.goto(30,58)
    turtle.seth(20)
    turtle.pd()
    turtle.circle(20,20)
    turtle.pu()
    turtle.pensize(1)
    turtle.goto(28,62)
    turtle.seth(25)
    turtle.pd()
    turtle.circle(20,12)
    turtle.pu()
    turtle.pensize(1)
    turtle.goto(-30,58)
    turtle.seth(160)
    turtle.pd()
    turtle.circle(-20,20)
    turtle.pu()
    turtle.pensize(1)
    turtle.goto(-28,62)
    turtle.seth(165)
    turtle.pd()
    turtle.circle(-20,12)
    turtle.pu()/<code>

運行上述代碼，我們可以看到鼠頭可以完整地繪製出來了，如下動圖所示：

二、繪製身體

接著，咱們來繪製老鼠的身體。我們（https://zmister.com）畫的這個老鼠是一個穿著財神服站立拱手的老鼠，所以它的身體需要重點突出的是服裝：

<code>def body():
    # 左手
    turtle.goto(-25,8)
    turtle.seth(240)
    turtle.pd()
    turtle.circle(150,15)
    turtle.seth(270)
    turtle.circle(40,15)
    turtle.circle(15,65)
    turtle.seth(0)
    turtle.forward(10)
    turtle.circle(10,100)
    turtle.seth(90)
    turtle.forward(5)
    turtle.circle(10,100)
    turtle.seth(180)
    turtle.forward(10)
    turtle.pu()
    # 右手
    turtle.goto(25,8)
    turtle.seth(-60)
    turtle.pd()
    turtle.circle(-150,15)
    turtle.seth(270)
    turtle.circle(-40,15)
    turtle.circle(-15,65)
    turtle.seth(180)
    turtle.forward(10)
    turtle.circle(-10,100)
    turtle.seth(90)
    turtle.forward(5)
    turtle.circle(-10,100)
    turtle.seth(0)
    turtle.forward(10)
    turtle.pu()

    # 袍子
    turtle.goto(-30,-48) 

    turtle.seth(270)
    turtle.pd()
    turtle.forward(30)
    turtle.circle(10,100)
    turtle.seth(0)
    turtle.forward(38)
    turtle.circle(10,100)
    turtle.seth(90)
    turtle.forward(30)
    turtle.pu()

    # 領口
    turtle.goto(-20,4)
    turtle.pd()
    turtle.seth(300)
    turtle.circle(30,20)
    turtle.seth(0)
    turtle.forward(25)
    turtle.seth(30)
    turtle.circle(30,20)
    turtle.pu()

    # 官帶
    turtle.goto(-7,-38)
    turtle.seth(0)
    turtle.pd()
    turtle.forward(15)
    turtle.pu()
    turtle.goto(-30,-54)
    turtle.pd()
    turtle.forward(60)
    turtle.pu()

    # 袍子上的波浪
    turtle.goto(-30,-80)
    turtle.pd()
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.pu() 


    turtle.goto(-25,-85)
    turtle.pd()
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.seth(90)
    turtle.circle(-5,180)
    turtle.pu()/<code>

運行上述代碼，我們可以看到老鼠身體的繪製過程，如下動圖所示：

這裡先不將其匯合在一起，待幾個部件都完成之後，我們再將其組成一個完整地老鼠。

三、繪製手

上面繪製的身體還缺了兩隻手，對了，還有袍子上的一個大金錢，我們將其補上：

<code>def hands():
    turtle.goto(-8, -25)
    turtle.pd()
    turtle.seth(30)
    turtle.forward(10)
    turtle.seth(0)
    turtle.circle(-10, 50)
    turtle.seth(210)
    turtle.forward(18)

    turtle.back(10)
    turtle.seth(-45)
    turtle.forward(10)
    turtle.back(10)
    turtle.seth(30)
    turtle.forward(8)
    turtle.seth(300)
    turtle.forward(5)
    turtle.pu()

    turtle.goto(0, -75)
    turtle.pd()
    turtle.seth(0)
    turtle.circle(10)
    turtle.seth(90)
    turtle.circle(10, 90)
    turtle.seth(0)
    turtle.circle(10, 90)
    turtle.seth(270)
    turtle.circle(10, 90)
    turtle.seth(180)
    turtle.circle(10, 90)
    turtle.pu()/<code>

拱手和金錢沒有和身體結合在一起時，暫時看不出上面效果來，如下動圖所示：

四、繪製帽子

老鼠還戴了一頂金錢帽，咱們（zmister.com）現在給它加上：

<code>def hat():
    # 畫帽子
    turtle.goto(-20,98)
    turtle.pd()
    turtle.seth(80)
    turtle.forward(20)
    turtle.seth(60)
    turtle.circle(-20,140)
    turtle.seth(-85)
    turtle.forward(18)
    turtle.pu()
 

    turtle.goto(-20,98)
    turtle.pd()
    turtle.seth(80)
    turtle.forward(5)
    turtle.seth(30)
    turtle.forward(22)
    turtle.seth(-25)
    turtle.forward(24)
    turtle.pu()/<code>

帽子主要都是由圓構成，其繪製過程如下動圖所示：

五、繪製尾巴

先不著急為老鼠帶上金錢帽，我們還忘記了老鼠有一根長長的尾巴，為它補上吧：

<code>def tail():
    turtle.goto(30, -60)
    turtle.pd()
    turtle.seth(20)
    turtle.circle(40, 80)
    turtle.circle(-20, 180)
    turtle.circle(-10, 90)/<code>

尾巴就是兩個方向相反弧度不同的圓，效果我們就不演示了。最後將其結合在一起：

<code>if __name__ == '__main__':
    head()
    body()
    hands()
    hat()
    tail()
    turtle.done()/<code>

我們就可以看到一個完整的鼠年福鼠繪製過程，如下動圖所示：

怎麼樣，是不是很簡單？

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