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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   # 导入turtle模块
 screen=turtle.Screen()
 screen=turtle.Screen()
 screen.bgcolor("light blue")
 screen.bgcolor("light blue")
 len=screen.textinput("100","100")
 len=screen.textinput("100","100")
 len=int(len)
 len=int(len)
-pen=turtle.Pen()
-pen.write("你好\nSB.",font=("Times",30,"normal"))
-pen.hideturtle()
+pen=turtle.Pen()  # 创建画笔
+# 用write()方法将内容写在画布上，参1书写内容（\n换行）参2字体名称大小类型赋值给font（元组）
+pen.write("诺依，\nturtle真好用，\n我会在画布上写字啦",font=("Times",30,"normal"))
+pen.hideturtle()  # 调用hide turtle()方法隐藏画笔
 len=60
 len=60
 pen.penup()
 pen.penup()
 pen.goto(100,100)
 pen.goto(100,100)
@@ -19,4 +20,4 @@ pen.circle(len,180)
 pen.right(90)
 pen.right(90)
 pen.circle(len,180)
 pen.circle(len,180)
 pen.forward(2*len)
 pen.forward(2*len)
-turtle.done()
+turtle.done()  # 保存画布

diy2.py

+import turtle   # 导入turtle模块
+# 背景颜色
+screen = turtle.Screen()  # 取出画布背景并赋值给变量screen
+screen.bgcolor("light blue")  # 改变背景颜色为blue
+# 写字
+pen=turtle.Pen()  # 创建画笔
+pen.penup()  # 抬起画笔
+pen.goto(100,-100)  # 将文字画笔移至爱心右下角位置
+# 用write()方法将内容写在画布上，参1书写内容（\n换行）参2字体名称大小类型赋值给font（元组）
+pen.write("诺依，\nturtle真好用，\n我会在画布上写字啦",font=("Times",15,"normal"))
+pen.hideturtle()  # 调用hide turtle()方法隐藏画笔
+# 画爱心
+pen1 = turtle.Pen()  # 新建画笔pen1
+pen1.pencolor("red")  # 设置线条颜色 
+pen1.pensize(5)  # 设置线条粗细
+# 调用textinput()创建对话窗口参1标题，参2提示，并赋值给变量len
+len = screen.textinput("提示", "你想要多大的爱心呀？")
+lovesize = int(len)  # 用int()转化变量len，并赋值给变量lovesize
+# ⬆整数
+pen1.left(45)  # 左转45度
+pen1.forward(2*lovesize)  # 向前2*len
+pen1.circle(lovesize,180)  # 画出半圆len，180
+pen1.right(90)  # 右转90度
+pen1.circle(lovesize,180)  # 画出半圆len，180
+pen1.forward(2*lovesize)  # 向前2*len
+pen1.hideturtle()  # 隐藏画笔
+turtle.done()  # 保存画布
+
+