Question

C# 错误 1 找不到类型或命名空间名称“Student”(是否缺少 using 指令或程序集引用?)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Class
{

public class StudentClass
{

private Student[] students = new Student[35];
public Student this[int i]
{
get
{
if ((i >= 0) && (i < students.Length))
{
return students[i];
}
else
{
return null;
}

}
set
{
if ((i >= 0) && (i < students.Length))
{
students[i] = value;
}
}

}

static void Main(string[] args)
{

Student firstStudent;
firstStudent = new Student();
firstStudent.Name = "关羽";
firstStudent.BirthDay = new DateTime(1990, 1, 2);
firstStudent.StudentID = "140407";
Student anotherStudent;
anotherStudent = new Student();
anotherStudent.Name = "张飞";
anotherStudent.BirthDay = new DateTime(1996, 2, 3);
anotherStudent.StudentID = "123123";
//Console.WriteLine("{0}号学生{1}出生日期是:{2}",firstStudent.StudentID,firstStudent.Name,firstStudent.BrithDay);
//Console.WriteLine("{0}号学生{1}出生日期是:{2}",anotherStudent.StudentID,anotherStudent.Name,anotherStudent.BirthDay);

StudentClass firstStudentClass = new StudentClass();
firstStudentClass[0] = firstStudent;
firstStudentClass[1] = anotherStudent;
Student getedStudent;
getedStudent = firstStudentClass[1];

Console.WriteLine("{0} 号学生{1}出生日期：{2}", getedStudent.StudentID, getedStudent.Name,
getedStudent.BirthDay);
Console.WriteLine("{0} 号学生{1}出生日期：{2}", getedStudent.StudentID, getedStudent.Name,
getedStudent.BirthDay);

Console.ReadLine();

}
}
}

Answer 1

Student firstStudent;
firstStudent = new Student
你这个Student 从哪里来的？？？？
C＃里面有这个明明空间吗？？？
还是他是一个你自己设计的，如果是你自己设计的话
在最上面加上一句“using 工程名称.....Student”
这样应该就没问题了、

Answer 2

你写的很乱 。。。 建议这样写：
class student
{
名字 出生日期 ID
}
Student firstStudent;
firstStudent = new Student();
firstStudent.Name = "关羽";
firstStudent.BirthDay = new DateTime(1990, 1, 2);
firstStudent.StudentID = "140407";
Student anotherStudent;
anotherStudent = new Student();
anotherStudent.Name = "张飞";
anotherStudent.BirthDay = new DateTime(1996, 2, 3);
anotherStudent.StudentID = "123123";
Console.WriteLine("{0} 号学生{1}出生日期：{2}", firstStudent .StudentID, firstStudent .Name,
firstStudent .BirthDay);
不知道写的怎么样，你可以参考下

Answer 3

你要定义一个Student类，里面包含Name、BirthDay、StudentID 属性

Answer 4

凑数

Answer 5

没有student类