c#如何获得需要浏览器来跳转的链接呢

我想得到我提取出来的网络链接的真正的链接，但是试过很多方法都不行，只有放浏览器里，让他反应才可以，但是这样太坑爹了，求大神们有什么好办法没有

链接1:http://ai.taobao.com/auction/edetail.htm?e=js3icWfJZ4%2FghojqVNxKsYSJDZ1adjmS4mujNrE3oq%2BLltG5xFicObalFqTViQTOxN35oEuRTJew2QavlD7IKn8nMt0sZy5n3YqzTNAI%2FzaEskZr9BxMt1Rmtaud%2B0v%2Bf0g%2Fdp4gKU%2F3OEyCfD0X4A%3D%3D&ptype=100011&rType=1&from=goldenlink&eid=&clk1=ad4b8205b53bb43815ee165faab72ec7&up

链接2:http://www.juanzhe.com/?ac=jump&iid=523206556462

用httpwebrequest拦截301/302跳转，然后重复这个过程直到返回200

http://redirect.simba.taobao.com/rd?&f=http%3A%2F%2Fai.taobao.com%2Fauction%2Fedetail.htm%3Fe%3DocQcajH527zuDAZjWhpTWLf%252BdJcmP13%252FJj2cHn3oDL1BWJVBnwmj7rIcGym4S3j1mjXyGiP6gLu50VDmyluWgvJN1CGsLx3nZ5ZWStcuiaR1IUTDE9myf1Rmtaud%252B0v%252BPIul78h0WejsiLLiSHYlQQ%253D%253D%26ptype%3D100011%26rType%3D1%26from%3Dgoldenlink%26eid%3D&k=5ccfdb950740ca16&p=mm_43737826_8258992_27986064&pvid=ddfea7d698892f6c01834965ce707492&posid=&b=display_1_7_0_0_0&w=unionapijs&c=un
HTTP
GET
302
text/html
.69 KB
188 ms

随手打开ie网络跟了一下就有，你确定没有302？