save project

snake.py

@@ -55,10 +55,13 @@ while True:
     else:
     else:
         y += 30
         y += 30
     if apple_x==x and apple_y==y:
     if apple_x==x and apple_y==y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
-    position.append((x, y))
+        n=random.randint(1,22)
+        m=random.randint(1,16)
+        apple_x=30*n-30
+        apple_y=30*m-30
+    else:
         position.pop(0)
         position.pop(0)
+    position.append((x, y))
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去