pictureBox1的Image属性获得图片路径的三种方法

1.绝对路径
this.pictureBox2.Image=Image.FromFile("E:\\001.jpg"); 

2.相对路径:
Application.StartupPath;  
可以得到程序根目录  
this.pictureBox2.Image=Image.FromFile(Application.StartupPath "\\1.gif"); 

3.获得网络图片的路径
this.pictureBox2.Image= Image.FromStream(System.Net.WebRequest.Create(http://www.biye5u.com/images/logo.gif).GetResponse().GetResponseStream());