本质上两者一样的，都是从xml配置文件创建虚拟机
define 丛xml配置文件创建主机但是不启动
create 同样是丛xml配置文件创建主机，但是可以指定很多选项，比如是否启动，是否连接控制台
NAME
create - create a domain from an XML file
SYNOPSIS
create <file> [--console] [--paused] [--autodestroy] [--pass-fds <string>] [--validate]
DESCRIPTION
Create a domain.
OPTIONS
[--file] <string> file containing an XML domain description
--console attach to console after creation
--paused leave the guest paused after creation
--autodestroy automatically destroy the guest when virsh disconnects
--pass-fds <string> pass file descriptors N,M,... to the guest
--validate validate the XML against the schema
NAME
create - create a domain from an XML file
SYNOPSIS
create <file> [--console] [--paused] [--autodestroy] [--pass-fds <string>] [--validate]
DESCRIPTION
Create a domain.
OPTIONS
[--file] <string> file containing an XML domain description
--console attach to console after creation
--paused leave the guest paused after creation
--autodestroy automatically destroy the guest when virsh disconnects
--pass-fds <string> pass file descriptors N,M,... to the guest
--validate validate the XML against the schema