写出下面代码输入结果？#!/bin/bashurl="http://www.hngzy.com/"website1='SHELL学习：${url}'website2="SHELL学习：${url}"echo $website1echo $website2
写出下面代码输入结果？#!/bin/bashurl="http://www.hngzy.com/"website1='SHELL学习：${url}'website2="SHELL学习：${url}"echo $website1echo $website2
执行以下语句的结果，分析单引号和双引号有何区别？#!/bin/bashurl="http://w.pythonabc.com"website1='SHELL脚本学习：${url}'website2="SHELL脚本学习：${url}"echo $website1echo $website2
执行以下语句的结果，分析单引号和双引号有何区别？#!/bin/bashurl="http://w.pythonabc.com"website1='SHELL脚本学习：${url}'website2="SHELL脚本学习：${url}"echo $website1echo $website2
1