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class NewStudent
{
private Dictionary<Student, long> userList = new Dictionary<Student, long>();
public NewStudent()
{
List<Student> student=new List<Student>();
Student stu=new Student(){Name="张三",Id="001"};
Student stu2=new Student(){Name="张三",Id="002"};
Student stu3=new Student(){Name="李四",Id="003"};
student.Add(stu);
student.Add(stu2);
student.Add(stu3);
//ID,身份证
long ID=3301270000001;
foreach (Student s in student)
{
userList.Add(s, ID);
ID += 1;
}
}
}
class Student
{
private string name;//名字可以重复
public string Name
{
get { return name; }
set { name = value; }
}
private string id;//学号唯一
public string Id
{
get { return id; }
set { id = value; }
}
}
public class TwoString
{
public TwoString(string s1, string s2)
{
String1 = s1;
String2 = s2;
}
public string String1 { get; set; }
public string String2 { get; set; }
}List<TwoString> openWith = new List<TwoString>();
openWith.Add(new TwoString("aa", "aaaa"));
openWith.Add(new TwoString("aa", "bbbb"));
openWith.Add(new TwoString("aa", "cccc")); List<KeyValuePair<string, string>> l = new List<KeyValuePair<string, string>>();
l.Add(new KeyValuePair<string, string>("aa", "aa1"));
l.Add(new KeyValuePair<string, string>("aa", "aa2"));
l.Add(new KeyValuePair<string, string>("aa", "aa3"));
l.Add(new KeyValuePair<string, string>("bb", "bb1"));
l.Add(new KeyValuePair<string, string>("cc", "cc1"));
var result = l.Where((itme) => itme.Key == "aa");public class TwoString
{
public string String1 { get; set; }
public string String2 { get; set; }
}List<TwoString> openWith = new List<TwoString>();
openWith.(new TwoString("aa", "aaaa"));
openWith.Add(new TwoString("aa", "bbbb"));
openWith.Add(new TwoString("aa", "cccc"));Dictionary<string, List<string>> openWith = new Dictionary<string, List<string>>();
List<string> list = new List<string>();
list.Add( "aaaa");
list.Add("bbbb");
list.Add("cccc");
openWith.Add("aa", list);