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bj.py

+# 画圆：pen.circle(半径)
+# 画圆弧：pen.circle(半径,角度)
+# 例如，画一个半径为50的半圆：
+import turtle
+pen=turtle.Pen()
+pen.circle(50,180)
+turtle.done()
+
+pen.pensize() # 设置画笔粗细，括号里填数字
+pen.pencolor() # 设置画笔颜色（red红，black黑，green绿，yellow黄，purple紫，blue蓝）
+
+bu=turtle.Screen() # 创建画布
+bu.bgcolor() # 设置画布的背景颜色
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diy1.py

 # 利用write()帮助悟空给诺依回信吧~
 # 利用write()帮助悟空给诺依回信吧~
 import turtle
 import turtle
-screen=turtle.Screen()
-screen.bgcolor("light blue")
-len=screen.textinput("100","100")
-len=int(len)
-pen=turtle.Pen()
-pen.write("你好\nSB.",font=("Times",30,"normal"))
-pen.hideturtle()
-len=60
+bu=turtle.Screen()
+bu.bgcolor("light blue")
+pen=turtle.Pen() # 创建一支画笔
 pen.penup()
 pen.penup()
-pen.goto(100,100)
-pen.pendown()
-pen.pensize(5)
-pen.pencolor("red")
-pen.left(45)
-pen.forward(2*len)
-pen.circle(len,180)
-pen.right(90)
-pen.circle(len,180)
-pen.forward(2*len)
+pen.goto(100,-100) # 画笔移动到具体的位置
+pen.write("但愿人长久，\n千里共婵娟。",font=("Times",20,"normal"))
+pen.hideturtle()
+# 画爱心
+len=40
+pen1=turtle.Pen()
+pen1.pensize(5)
+pen1.pencolor("red")
+pen1.left(45)
+pen1.forward(2*len)
+pen1.circle(len,180)
+pen1.right(90)
+pen1.circle(len,180)
+pen1.forward(2*len)
+pen1.hideturtle()
 turtle.done()
 turtle.done()
+