save project

snake.py

@@ -58,8 +58,8 @@ while True:
     if x == apple_x and y == apple_y:
         num1 = random.randint(1,22)
         num2 = random.randint(1,16)
-        apple_x = num1*30-30
-        apple_y = num2*30-30
+        apple_x = 30*num1-30
+        apple_y = 30*num2-30
     else:
         position.pop(0)
     # 将背景图画上去