C# List<T>.Sort排序

定义一个类型

public class tt
{
public int id;
public string name;
public string sex;
}

测试

List<tt> list = new List<tt>();
for (int i = 5; i > 0; i--)
{
tt t = new tt();
t.id = i;
t.name = "name" + i;
t.sex = "sex" + i;
list.Add(t);
}

StringBuilder sb = new StringBuilder();
foreach (tt t in list)
{
sb.AppendLine("{id=" + t.id + ",name=" + t.name + ",sex=" + t.sex + "}");
}
MessageBox.Show("排序前\n" + sb.ToString());

list.Sort(delegate(tt small, tt big) { return small.id - big.id; });

sb = new StringBuilder();
foreach (tt t in list)
{
sb.AppendLine("{id=" + t.id + ",name=" + t.name + ",sex=" + t.sex + "}");
}
MessageBox.Show("排序后\n" + sb.ToString());