auto save

diy1.py

@@ -9,12 +9,12 @@ screen.bgcolor('black')
 
 
 i=0
 i=0
 while i<135:
 while i<135:
-    screen.pencolor('pink')
+    turtle.pencolor('pink')
     pen.penup()
     pen.penup()
     pen.goto(0,0)
     pen.goto(0,0)
     pen.forward(200)
     pen.forward(200)
     pen.pendown()
     pen.pendown()
-    screen.circle(100)
+    turtle.circle(100)
     pen.left(2)
     pen.left(2)
     i+=1
     i+=1
 
 

平均分.py

+scores = {'语文':89, '数学':95, '英语':80}
+scores = {'语文':89, '数学':95, '英语':80}
+
+def get_average(scores):
+    sum_score = 0  # sum_score 作为函数内部的局部变量，从而可以为函数所用
+    for subject, score in scores.items():
+        sum_score += score
+        print('现在的总分是%d'%sum_score)
+    ave_score = sum_score/len(scores)
+    print('平均分是%d'%ave_score)
+
+get_average(scores)
+