{ name: 'testuser2', groups: 'root' } **嵌套循环** - name: give users access to multiple databases mysql_user: name={{ item[0] }} priv={{ item[1] }}.*:ALL append_privs=yes password=foo with_nested: - [ 'alice', 'bob' ] - [ 'clientdb', 'employeedb', 'providerdb' ]...