auto save

diy2.py

+import turtle
+t=turtle.Pen()
+for i in range(8):
+    for i in range(5):
+        t.forward(50)
+        t.right(72)
+    t.right(360/8)
+turtle.done()
\ No newline at end of file

diy3.py

+height = float(input('请输入您的身高：(m)'))
+weight = float(input('请输入您的体重:(kg)'))
+Bni=weight/(height*height)
+if Bni<18.5:
+    print('您的Bni经过')
+elif 18.5<=Bni<=23.9:
+    print('您的Bni正常')
+elif 24<=Bni<26.9:
+    print('您的Bni过重')
+elif 27<=Bni<32:     
+    print('您的Bni肥胖')
+elif Bni>32:
+    print('您的Bni非常肥胖')
+print('您的Bni指数是{:.if})'.format((Bin))         
+    
\ No newline at end of file