web应用的常用架构和安全

    <span style="color: #bc0e07;">1：web架构原理 <img style="vertical-align: text-bottom;" src="http://image.tianjimedia.com/imagelist/2009/128/677ewi6le883.jpg" alt="web架构图" width="450" height="292"></span>
<img style="vertical-align: text-bottom;" src="http://image.tianjimedia.com/imagelist/2009/128/zk7rqj6og6x6.jpg" alt="" width="450" height="248"><img style="vertical-align: text-bottom;" src="http://image.tianjimedia.com/imagelist/2009/128/14j9ngf1qplq.jpg" alt="" width="450" height="254"><img style="vertical-align: text-bottom;" src="http://image.tianjimedia.com/imagelist/2009/128/fg28o8uu7467.jpg" alt="" width="450" height="248">