本文实例讲述了C#中list用法。分享给大家供大家参考，具体如下：
protected void Page_Load( object sender, EventArgs e)
{
List< string > studentNames = new List< string >();
studentNames.Add( "John" );
studentNames.Add( "Mary" );
studentNames.Add( "Rose" );
//显示各元素
foreach ( string item in studentNames)
{
Response.Write(item);
Response.Write( "<br/>" );
}
Response.Write( "<br/><br/>" );
//List转换成符号分隔字符串
string studentAllName = string .Join( "," , studentNames.ToArray());
Response.Write(studentAllName);
Response.Write( "<br/><br/>" );
List< decimal > studentScore = new List< decimal >();
studentScore.Add(100);
studentScore.Add(98);
studentScore.Add(59);
//排序
studentScore.Sort();
//反转排序
studentScore.Reverse();
//显示各元素
foreach ( decimal score in studentScore)
{
Response.Write(score);
Response.Write( "<br/>" );
}
//总计SUM
Response.Write( "总分" + studentScore.Sum());
Response.Write( "<br/>" );
//List中是否存在
Response.Write(studentScore.Exists(MatchPRE));
Response.Write( "<br/><br/>" );
//List转换成JSon
List<Student> list = new List<Student>();
for ( int i = 0; i < 5; i++)
{
Student a = new Student();
a.Name = "张三" + i;
a.Age = i;
a.Sex = "男" ;
list.Add(a);
}
string json = new System.Web.Script.Serialization.JavaScriptSerializer().Serialize(list);
Response.Write(json);
Response.Write( "<br/><br/>" );
}
private static bool MatchPRE( decimal p) //条件匹配函数，list1中每个元素都会传入P中 //匹配后函数返回
{
if (p == 100) //此句为匹配条件，如果匹配，返回，你可以随意更改成你想要的值
return true ;
else
{
return false ;
}
}
public struct Student
{
public string Name;
public int Age;
public string Sex;
}
希望本文所述对大家C#程序设计有所帮助。
dy("nrwz");