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    "抢占模式与合作模式\n",
    "=============================="
   ]
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   "source": [
    "学习 Thread，执行各种 Thread 操作。  \n",
    "特别注意：NoteBook 本身的运行线程是后台线程，不会等待由其创建的线程执行结束。与控制台等应用有区别。 "
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   "source": [
    "## 全局设置，语言设置、Nuget包引用、空间引用等"
   ]
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     "kernelName": "csharp"
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   "source": [
    "//全局设置\n",
    "#!csharp\n",
    "using System.Threading;\n",
    "using System.Threading.Channels;\n",
    "using System.Threading.Tasks;\n",
    "\n",
    "//全局变量\n",
    "var noteBookThreadDesc = \"NoteBook线程\";"
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