save project

snake.py

@@ -54,8 +54,8 @@ while True:
     else:
         y += 30
     if x==apple_x and y==apple_y:
-        apple_x=random.randint(1,21)*30
-        apple_y=random.randint(1,15)*30
+        apple_x=random.randint(0,21)*30
+        apple_y=random.randint(0,15)*30
     position.append((x, y))
     position.pop(0)
     # 将背景图画上去