深度学习之一环境搭建篇-basci.ipynb

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    "# 一级标题\n",
    "## 二级标题\n",
    "### 三级标题\n",
    "- 列1 - 列4\n",
    "- 列2 \n",
    "- 列3\n",
    "<center>居中</center>\n",
    "<p>\n",
    "    \n",
    "*斜体*\n",
    "\n",
    "_斜体 _\n",
    "\n",
    "**加粗**\n",
    "__加粗__\n",
    "***粗斜体***\n",
    "___粗斜体___"
   ]
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    "## windows下安装环境\n",
    "### 一、安装anaconda\n",
    "1、下载anaconda：https://www.continuum.io/downloads\n",
    "\n",
    "2、单击下一步 进行安装 直到最后\n",
    "\n",
    "3、有两个地方要选中：\n",
    "    ①将anaconda加入path环境变量\n",
    "    ②将anaconda注册为默认的python\n",
    "### 二、启动命令提示符\n",
    "1、点击左上角可以设置相关字体属性\n",
    "### 三、利用anaconda建立虚拟环境\n",
    "1、建立并切换到工作目录 md \\pythonwork cd \\pythonwork\n",
    "\n",
    "2、建立anaconda虚拟环境 conda create --name tensorflow python=3.7 anaconda\n",
    "    说明：加入anaconda建立虚拟环境时，会同时安装常用的数据分析包\n",
    "    \n",
    "3、启动虚拟环境：activate tensorflow\n",
    "\n",
    "4、关闭虚拟环境：deactivate tensorflow\n",
    "\n",
    "5、查看已有虚拟环境:conda-env list\n",
    "### 四、虚拟环境中安装tensorflow与keras\n",
    "1、启动虚拟环境：activate tensorflow\n",
    "\n",
    "2、安装tensorflow:pip install tensorflow\n",
    "\n",
    "3、安装keras:pip install keras\n",
    "###  五、启动jupyter notebook\n",
    "1、切换工作目录：cd \\pythonwork\n",
    "\n",
    "2、启动jupyter:jupyter notebook\n",
    "\n",
    "3、建立文件，更改名字\n",
    "\n",
    "4、shiftt+enter:执行后光标会移动到下一个单元格\n",
    "   ctrl+enter:执行后，光标仍在当前的单元格\n",
    "   \n",
    "5、导入模块查看版本：import tensorflow as tf tf.__version__\n",
    "\n",
    "6、导入模块查看版本：import keras keras.__version__\n",
    "\n",
    "## linux下安装环境\n",
    "### 一、复制下载anaconda的网址：anaconda forlinux 版本\n",
    "### 二、下载这个文件：wget /  /  /.sh\n",
    "### 三、安装anaconda\n",
    "1、 终端输入:bash anaconda3-4.2.0-linux-x86_64.sh -b\n",
    "   说明： 加入-b 是batch处理安装，会自动省略 阅读license条款，并自动安装到/home/hduser/anaconda3a下\n",
    "   \n",
    "2、编辑~/.bashrc加入模块路径：sudo gedit ~/.bashrc\n",
    "   输入：export PATH=\"home/user/anaconda3/bin:$PATH\"\n",
    "   目的是为了将anaconda执行文件路径加入PATH，让我们在不同路径都可以执行anaconda.\n",
    "   \n",
    "3、重新注销登入，使得~/.bashrc修改生效\n",
    "    source ~/.bashrc\n",
    "    \n",
    "4、在终端中查看python 版本：python --version\n",
    "\n",
    "### 四、安装tf和keras\n",
    "1、终端输入：pip install tensorflow\n",
    "\n",
    "2、终端输入：pip isntall keras\n",
    "\n",
    "### 五、启动jupyter notebook\n",
    "安装anconda时会自动安装notebook,所以直接启动就可。\n",
    "\n",
    "1、建立ipynotebook工作目录，终端中输入下列命令，切换到工作目录：\n",
    "\n",
    "    mkdir -p ~/pywork \n",
    "    \n",
    "    cd ~/pywork\n",
    "    \n",
    "    jupyter notebook\n",
    "    \n"
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