Initializing a List

本文关键字：List Initializing | 更新日期: 2023-09-27 18:19:07

我创建了一个类student，它有三个属性，像这样

public class Student
{
    public int age;
    public string name;
    public string course;
    public Student(int age , string name , string course)
    {
        this.age = age;
        this.course = course;
        this.name = name;
    }
    List<Student> school = new List<Student>(
        new Student(12,"ram","ece"));                        
        );
}

我要做的是，我正在手动添加学生的详细信息到学生类

但是在

这一行出现了错误
  new Student(12,"ram","ece"));

错误:不能从windowsapplication.student转换到systems.Collections.Generic.IEnumerable<windowsapplication.Student>

为什么会发生这种情况?

Initializing a List

您使用的语法试图将新的Student传递给List<Student>的构造函数-没有这样的构造函数，因此出现错误。

你有一个小语法错误。这应该可以工作:

List<Student> school = new List<Student>{
                        new Student(12,"ram","ece"));                        
                       };

集合初始化器的语法是{}而不是()。

List<Student>构造器期望IEnumerable<Student>，而不是单个学生。我想你实际上是想使用列表初始化器语法:

List<Student> school = new List<Student>()
{
    new Student(12,"ram","ece"),
};

try

List<Student> school = new List<Student>() { new Student(12,"ram","ece") };

试试这个:

List<Student> school = new List<Student>();
school.add(new Student(12,"ram","ece"));
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