crontab修改编辑器

执行crontab -e命令后选择了nano 怎么改回来呢

noxi@localhost:~/workspace/sWorkspace$ crontab -eno crontab for noxisl - using an empty oneSelect an editor.  To change later, run 'select-editor'.  1. /bin/ed  2. /bin/nano        <---- easiest  3. /usr/bin/vim.basicChoose 1-3 [2]: 2No modification madenoxi@localhost:~/workspace/sWorkspace$ crontab -eno crontab for noxisl - using an empty oneNo modification madenoxi@localhost:~/workspace/sWorkspace$ select-editorSelect an editor.  To change later, run 'select-editor'.  1. /bin/ed  2. /bin/nano        <---- easiest  3. /usr/bin/vim.basicChoose 1-3 [2]: 3noxi@localhost:~/workspace/sWorkspace$ crontab -e