C#学习笔记之——学生信息输入系统(Dictionary)

创建一个学生类

public class Student{protected string name;protected string stuID;protected int score;public Student(){}public string Name{set{if (name == null)name = value;}get{return name;}}public string StuID{set{if (stuID == null)stuID = value;}get{return stuID;}}public int Score{set{score = value;}get{return score;}}}

创建dictionary存放学生信息，录入完毕用学生学号排序

Dictionary<int, Student> studentInfo = new Dictionary<int, Student> ();//Student stu = new Student ();Console.WriteLine ("please write down the student's information:(when write down \" \" (space) ,shut down)");Console.Write ("No.");int i;string a = Console.ReadLine ();while (a != " ") {Student stu = new Student ();Console.Write ("student's name:");stu.Name = Console.ReadLine ();Console.Write ("student's ID:");stu.StuID = Console.ReadLine ();Console.Write ("student's score:");stu.Score = int.Parse (Console.ReadLine ());i = int.Parse (a);studentInfo.Add (i, stu);Console.Write ("No.");a = Console.ReadLine ();}Dictionary<int, Student> studentIndo_SortedByValue = studentInfo.OrderBy(p=>p.Value.StuID).ToDictionary(p => p.Key, o => o.Value);foreach (var item in studentIndo_SortedByValue) {Console.WriteLine (item.Key + " " + item.Value.Name + " " + item.Value.StuID + " " + item.Value.Score);}

结果：

please write down the student's information:(when write down " " (space) ,shut down)

No.1

student's name:Pink

student's ID:03

student's score:89

No.2

student's name:Sia

student's ID:01

student's score:67

No.3

student's name:Ed

student's ID:02

student's score:45

No. 

2 Sia 01 67

3 Ed 02 45

1 Pink 03 89

黄老板的粉不要打我，我也是随便举的例子QAQ