string str = "/f?kz=847046009";
Uri ur = new Uri("http://tieba.baidu.com/f?kw=%C0%EE%D2%E3");
var uri3 = new Uri(ur, str);
Console.WriteLine(uri3.ToString());![](https://images.cnblogs.com/cnblogs_com/chenli0513/QQ截图未命名.png)
Uri ur = new Uri("http://tieba.baidu.com/f?kw=%C0%EE%D2%E3");
var uri3 = new Uri(ur, str);
Console.WriteLine(uri3.ToString());
![](https://images.cnblogs.com/cnblogs_com/chenli0513/QQ截图未命名.png)