{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# 运行 CPU 密集型任务\n",
    "\n",
    "NiceGUI 提供了一个 `cpu_bound` 函数，用于在单独的进程中运行 CPU 密集型任务。对于那些长时间运行的计算而言，这非常有用，否则这些计算会阻塞事件循环并使 UI 无响应。该函数返回一个可以被等待的 `future`。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<nicegui.elements.button.Button at 0x24074bb3250>"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import time\n",
    "from nicegui import run, ui\n",
    "\n",
    "def compute_sum(a: float, b: float) -> float:\n",
    "    time.sleep(1)  # simulate a long-running computation\n",
    "    return a + b\n",
    "\n",
    "async def handle_click():\n",
    "    result = await run.cpu_bound(compute_sum, 1, 2)\n",
    "    ui.notify(f'Sum is {result}')\n",
    "\n",
    "ui.button('Compute', on_click=handle_click)\n",
    "\n",
    "# ui.run()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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