save project

snake.py

@@ -53,6 +53,8 @@ while True:
         y -= 30
         y -= 30
     else:
     else:
         y += 30
         y += 30
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     position.append((x, y))
     position.append((x, y))
     if x==apple_x and y==apple_y:
     if x==apple_x and y==apple_y:
         score=score+1
         score=score+1