softlayer 本周特价优惠码：
$20.00 off Single Processor Servers in all SoftLayer datacenters. Enter Promotional Code $20 to receive this special offer.
单核服务器 优惠码：$20 优惠20美元
$50.00 off Dual Processor Servers in all SoftLayer datacenters. Enter Promotional Code $50 to receive this special offer.
双核服务器 优惠码：$50 优惠50美元
$100.00 off Quad Processor Servers in all SoftLayer datacenters. Enter Promotional Code $100 to receive this special offer.
四核服务器 优惠码：$100 优惠100美元
