{
 "cells": [
  {
   "cell_type": "markdown",
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   "source": [
    "# 清除容器\n",
    "\n",
    "要从行、列或卡片容器中移除所有元素，可以调用\n",
    "\n",
    "```python\n",
    "container.clear()\n",
    "```\n",
    "或者，您可以通过以下方式移除单个元素：\n",
    "\n",
    "```python\n",
    "container.remove(element: Element)\n",
    "container.remove(index: int)\n",
    "element.delete()\n",
    "```"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<nicegui.elements.button.Button at 0x18f7ca86f10>"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from nicegui import ui\n",
    "\n",
    "container = ui.row()\n",
    "\n",
    "def add_face():\n",
    "    with container:\n",
    "        ui.icon('face')\n",
    "add_face()\n",
    "\n",
    "ui.button('Add', on_click=add_face)\n",
    "ui.button('Remove', on_click=lambda: container.remove(0) if list(container) else None)\n",
    "ui.button('Clear', on_click=container.clear)\n",
    "\n",
    "# ui.run()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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