get /users index users_path 显示users列表页
get /users/1 show user_path 显示某个user
get /users/new new new_user_path 创建user的页面
post /users create users_path 创建user
get /users/1/edit edit edit_user_path 编辑id为1的user的页面
patch users/1 update user_path 更新user
delete /users/1 destroy user_path 删除id为1的user