public class MyClass 
{ 
public int one { set; get; } 
public int two { set; get; } 
public int five { set; get; } 
public int three { set; get; } 
public int four { set; get; } 
} 

MyClass obj = new MyClass(); 
Type t = typeof(MyClass); 
//循环赋值 
int i = 0; 
foreach (var item in t.GetProperties()) 
{ 
item.SetValue(obj, i, null); 
i += 1; 
} 
//单独赋值 
t.GetProperty("five").SetValue(obj, 11111111, null); 
//循环获取 
StringBuilder sb = new StringBuilder(); 
foreach (var item in t.GetProperties()) 
{ 
sb.Append("类型：" + item.PropertyType.FullName + " 属性名：" + item.Name + " 值：" + item.GetValue(obj, null) + "<br />"); 
} 
//单独取值 
int five = Convert.ToInt32(t.GetProperty("five").GetValue(obj, null)); 
sb.Append("单独取five的值：" + five); 
string result = sb.ToString(); 
Response.Write(result);