restful与resource
| Verb | URI | Action | Route Name | 作用 |
| GET | /issues | index | issues.index | 列表显示所有的issues |
| GET | /issues/create | create | issues.create | 显示新增issue的表单 |
| POST | /issues | store | issues.store | 真正执行新增操作，插入数据库 |
| GET | /issues/{issue} | show | issues.show | 显示一条issue |
| GET | /issues/{issue}/edit | edit | issues.edit | 显示编辑issue的表单 |
| PUT/PATCH | /issues/{issue} | update | issues.update | 真正执行更新操作，修改数据库 |
| DELETE | /issues/{issue} | destory | issues.destroy | 删除issue |
