先可以在dockerhub上查看Wordpress的详情:
Docker
https://hub.docker.com/search?q=wordpress
具体速度慢的问题如下:

现在打开docker右上角的设置图标,并进入docker engine,添加如下代码:
"registry-mirrors": [
    "https://registry.docker-cn.com",
    "https://mirror.ccs.tencentyun.com"
  ] 
添加完之后的样子应该是:
{
  "builder": {
    "gc": {
      "defaultKeepStorage": "20GB",
      "enabled": true
    }
  },
  "experimental": false,
  "registry-mirrors": [
    "https://registry.docker-cn.com",
    "https://mirror.ccs.tencentyun.com"
  ]
} 
 

点击apply&restart。
桌面新建文件夹docker-wordpress,创建txt文件后重命名为docker-compose.yml,用vscode或者记事本打开,输入如下内容:
version: '3.1'
services:
  wordpress:
    image: wordpress
    restart: always
    ports:
      - 8080:80
    environment:
      WORDPRESS_DB_HOST: db
      WORDPRESS_DB_USER: exampleuser
      WORDPRESS_DB_PASSWORD: examplepass
      WORDPRESS_DB_NAME: exampledb
    volumes:
      - wordpress:/var/www/html
  db:
    image: mysql:5.7
    restart: always
    environment:
      MYSQL_DATABASE: exampledb
      MYSQL_USER: exampleuser
      MYSQL_PASSWORD: examplepass
      MYSQL_RANDOM_ROOT_PASSWORD: '1'
    volumes:
      - db:/var/lib/mysql
volumes:
  wordpress:
  db: 
运行powershell,转到文件夹docker-wordpress目录下,运行:
docker-compose up -d 
如图:

查看docker中的images或者containers,Wordpress和MySQL已经安装并运行了。

在浏览器中输入:
localhost:8080 
如下图,表明成功!




















