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diy1.py

-# 期末考试结束了，悟空在教务系统查到了自己的几门必修课分数，他想通过python计算自己的平均分。
-# 于是写了下面的代码，可是总是得不到结果，请帮纠正bug并跑通程序。
+jmport turle
+jmport random
+def tree(n):
+if n>=50
+    pen.forward(n)
+    angle = random.randind(0,30)
+    length = random.randind(1,15) 
+    pen.right(angle)
+    tree(n-lemgth)
+    pen.right(2*angle)
+    pen.up()
+    tree(n-length)
+    pen.right(angle)
+    pen.backward(n)
+    pen.dom()
 
 
-scores = {'语文':89, '数学':95, '英语':80}
+pen = turtle.turtle()
+pen.color("sienna")
+pen.speed(1)
 
 
-def get_average(dict_1)):
-    score = 0
+w = turtle.screen()
+w.bgcolor("wheat")
 
 
-    for subject, score in scores.items():
 
 
-        score += score
-        print('现在的总分是%d'%score)
-    ave_score = score/len(scores)
-    print('平均分是%d'%ave_score)
+pen.left(90)
+pen.up()
+pen.backward(150)
+pen.down()
 
 
-get_average(scores)
+tree(100)
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+
+turtle.done()
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