<p class="shortdesc"></p> <p class="p">不同计费方式的云服务器ECS实例具有不同的功能，下表列出了它们的区别。</p> <table class="table" id="Billing_Comparison__table_dvr_4vh_z5b"><caption></caption><colgroup><col><col><col></colgroup><thead class="thead"> <tr class="row"> <th class="entry" id="Billing_Comparison__table_dvr_4vh_z5b__entry__1"><p class="p">对比项</p></th> <th class="entry" id="Billing_Comparison__table_dvr_4vh_z5b__entry__2"><p class="p">预付费（包月付费）</p></th> <th class="entry" id="Billing_Comparison__table_dvr_4vh_z5b__entry__3"><p class="p">按量付费</p></th> </tr> </thead><tbody class="tbody"> <tr class="row"> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__1 "><p class="p">续费</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__2 "> <p class="p">支持。</p> <p class="p">您可以手动续费，也可以给云服务器ECS实例配置自动续费（自动续费周期为1个月）。</p> </td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__3 "><p class="p">不支持。</p></td> </tr> <tr class="row"> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__1 "><p class="p">变更付费方式</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__2 "> <p class="p">不支持。</p> <p class="p">包月付费不能变更为按量付费。</p> </td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__3 "> <p class="p">支持。</p> <p class="p">按量付费可以变更为包月付费。</p> </td> </tr> <tr class="row"> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__1 "><p class="p">升配</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__2 "><p class="p">支持。</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__3 "><p class="p">支持。</p></td> </tr> <tr class="row"> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__1 "><p class="p">降配</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__2 "><p class="p">支持。</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__3 "><p class="p">支持。</p></td> </tr> <tr class="row"> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__1 "><p class="p">随时释放实例</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__2 "> <p class="p">支持。</p> <p class="p">您可通过提交工单的方式结算剩余费用。实例到期后，若指定时间内未及时续费，实例将会被自动释放。</p> </td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__3 "><p class="p">支持。</p></td> </tr> <tr class="row"> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__1 "><p class="p">变更带宽配置</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__2 "><p class="p">支持。</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__3 "><p class="p">支持。</p></td> </tr> <tr class="row"> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__1 "><p class="p">免费使用系统热补丁、主机卫士、基础版安全中心PSC。</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__2 "><p class="p">支持。</p></td> <td class="entry" headers="Billing_Comparison__table_dvr_4vh_z5b__entry__3 "><p class="p">支持。</p></td> </tr> </tbody></table> <p class="p"> </p>