C＃如何在方法中检索List的数据

Question

我有一种获取学生数据的方法：

const G = [
  [9,9,9,9,9,9]
]
const P = [
  [9,9]
]
let availableFirstLines = [];

G.forEach((Gv, Gi) => {
  const Gs = Gv.toString();
  P.forEach(Pv => {
    const Ps = Pv.toString();
    let i, fi = 0;
    while ((i = Gs.indexOf(Ps, fi)) >= 0) {
      availableFirstLines.push({
        line: Gi,
        charAtStringStart: i,
        charAtStringEnd: i + Ps.length - 1
      });
      fi = i + 1;
    }
  })
});
console.log(availableFirstLines);

我正在尝试创建一种使用 public static List<Student> getStudentInfo() { List<Student> students = new List<Student>(); students.Add(new Student(1, "Doe", "John", "someData")); students.Add(new Student(2, "Pit", "Brat", "someData1")); students.Add(new Student(5, "Kardasian", "Kim", "someData2")); students.Add(new Student(4, "Lee", "Chun", "someData")); . . return students; } foreach (Student s in students) Console.WriteLine(s); 来检索上述数据的方法 ，但我无法获取并打印数据。

如何使用方法访问列表？

Answer 1

选项1.覆盖ToString()

请参阅How to: Override the ToString Method (C# Programming Guide)

class Person
{
   public string Name { get; set; }
   public int Age { get; set; }


   public override string ToString()
   {
       return "Person: " + Name + " " + Age;
   }
}

选项2。分别打印字段

foreach (Student s in students)
     Console.WriteLine($"{s.Id} {s.SomeData}");

---

var students = getStudentInfo();
foreach (Student s in students)
Console.WriteLine(s); // `Student` doesn't override ToString(), this will be the name of the class.

foreach (Student s in students)
Console.WriteLine($"{s.Id}, {s.Name}"); 

输出

Program+Student
Program+Student
Program+Student
Program+Student
1, Doe
2, Pit
5, Kardasian
4, Lee