安装好了Let’s Encrypt ,添加目录的时候没有添加证书选项，要设置哪里吗

Do you want to setup SSL under Apache? [y/n]: y
Please input domain(example: http://www.linuxeye.com): exp.com
domain=exp.com
Do you want to add more domain name? [y/n]: y
Type domainname or IP(example: linuxeye.com 121.43.8.8): http://www.exp.com
domain list=www.exp.com
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
Country Name (2 letter code) [CN]: CN
State or Province Name (full name) [Shanghai]: Guangdong
Locality Name (eg, city) [Shanghai]: Guangdong
Organization Name (eg, company) [LinuxEye Inc.]:
Organizational Unit Name (eg, section) [IT Dept.]:
Please input the directory for the domain:exp.com :
(Default directory: /data/wwwroot/exp.com):
Virtual Host Directory=/data/wwwroot/exp.com
Create Virtul Host directory......
set permissions of Virtual Host directory......
Allow Apache access_log? [y/n]: y
You access log file=/data/wwwlogs/exp.com_apache.log
Syntax OK
Restart Apache......