{
 "cells": [
  {
   "cell_type": "markdown",
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   "source": [
    "# 颜色输入\n",
    "\n",
    "`Color Input` 元素扩展了 Quasar 的 [QInput](https://quasar.dev/vue-components/input) 组件，增加了颜色选择器。\n",
    "\n",
    "- `label`: 颜色输入的显示标签\n",
    "-`placeholder`: 如果没有选择颜色，显示的文本\n",
    "- `value`: 当前的颜色值\n",
    "- `on_change`: 当值改变时执行的回调函数\n",
    "- `preview`: 将更改按钮背景变为所选颜色（默认：`False`）"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<nicegui.elements.color_input.ColorInput at 0x20b8027f750>"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from nicegui import ui\n",
    "\n",
    "label = ui.label('Change my color!')\n",
    "ui.color_input(label='Color', value='#000000',\n",
    "               on_change=lambda e: label.style(f'color:{e.value}'))\n",
    "\n",
    "# ui.run()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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