auto save

1.py

+import turtle
+#背景颜色
+screen=turtle.Screen()
+screen.bgcolor("light blue")
+#写字
+pen=turtle.Pen()
+pen.penup()
+pen.goto(100,-100)
+pen.write("Hi，诺依~\n用python写电子贺卡真是太有趣啦~\n我也喜欢python~\n——悟空 ",font=("Times",20,"normal") )
+pen.hideturtle()
+#画爱心
+pen1=turtle.Pen()
+pen1.pencolor("red")
+pen1.pensize(5)
+len=screen.textinput("提示", "你想要多大的爱心呀？")
+lovesize=int(len)
+pen1.left(45)
+pen1.forward(2*lovesize)
+pen1.circle(lovesize,180)
+pen1.right(90)
+pen1.circle(lovesize, 180)
+pen1.forward(2*lovesize)
+pen1.hideturtle()
+turtle.done()
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diy1.py

@@ -4,11 +4,13 @@
 scores = {'语文':89, '数学':95, '英语':80}
 scores = {'语文':89, '数学':95, '英语':80}
 
 
 def get_average(scores):
 def get_average(scores):
-    score = 0  
-    for subject, score in scores.items():
-        score += score
+    score = 0  #局部变量
+    for subject, a in scores.items():
+        score += a
         print('现在的总分是%d'%score)
         print('现在的总分是%d'%score)
     ave_score = score/len(scores)
     ave_score = score/len(scores)
     print('平均分是%d'%ave_score)
     print('平均分是%d'%ave_score)
 
 
-get_average(scores)
+get_average(scores)
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+
+ 
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