B站地址 https://www.bilibili.com/video/BV1c64y1v7Rn <span data-mce-type="bookmark" style="display: inline-block; width: 0px; overflow: hidden; line-height: 0;" class="mce_SELRES_start"></span>
学写了，以前用格兰头还以为防止电缆被划伤