在一个博客上（http://）看到可以给动态数组添加对象作为元素，只复制了几句，前面定义过类student：
 ArrayList students = new ArrayList();     
 //实例化几个Student类对象     
Student rose = new Student("rose",25,"reading");     
 Student jack = new Student("jack",28,"singing");     
 Student mimi = new Student("mimi",26,"dancing");     
 //利用ArrayList类的add()方法添加元素     
students.add(rose);     
students.add(jack);     
 students.add(mimi);

现在我用同样思路给动态数组添加结构体变量作为元素，结果出错，如下：   
struct student        
{string name;            
 int math;            
 int english;              
string address;              
bool  IsPartyNumber;
 };        
 student a={"xiaoming",90,80,"xian",false },                 
b={"liming",85,85,"ankang",true },                 
c={"juan",78,74,"henan",false },                 
d={"feng",85,40,"jiangxi",true };                 
ArrayList students = new ArrayList();         
students.Add(a);         
students.Add(b);         
students.Add(c);         
students.Add(d);  
最后这四句出错，为什么？c#中如何向动态数组添加结构体作为元素？
   



[ 本帖最后由 qianwantao 于 2011-10-4 17:36 编辑 ]

  struct student        
        {
           public string name;
           public int math;
           public int english;
           public string address;
           public bool IsPartyNumber;
        };        

        private void Form1_Load(object sender, EventArgs e)
        {
            student a = new student();
            a.name = "";
            ArrayList students = new ArrayList();
            students.Add(a);
            ///这样就行了。。。。。你看下你查到的是用什么语言写的语法跟C#不一样
        }

struct student       
{string name;            
int math;            
int english;             
string address;             
bool  IsPartyNumber;
};  //C#结构体没有分号的     
student a={"xiaoming",90,80,"xian",false },                
b={"liming",85,85,"ankang",true },                
c={"juan",78,74,"henan",false },                
d={"feng",85,40,"jiangxi",true };      
//C++的写法是不对的，改下吧         

你不应该用"ArrayList"。
在C#中，你应该可以写：

static void Main()
{
    Student jack = null;

    IList<Student> list = new List<Student>
    {
        new Student("rose", 25, "reading"),
        (jack = new Student("jack", 28, "singing")),
        new Student("mimi", 26, "dancing")
    };
   
    ...
}

看楼主的例子，是想将结构体放入到集合中，在C#中，结构体的用法跟类的用法是相同的，看下面代码

    public struct student
    {
        public string name;
        public int math;
        public int english;
        public string address;
        public bool IsPartyNumber;
    }

    class Program
    {
        static void Main(string[] args)
        {
            student a = new student();
            a.name = "xiaoming";
            a.math = 90;
            a.english = 80;
            a.address = "xian";
            a.IsPartyNumber = false;

            student b = new student();
            b.name = "liming";
            b.math = 85;
            b.english = 85;
            b.address = "ankang";
            b.IsPartyNumber = true;

            student c = new student();
            c.name = "juan";
            c.math = 78;
            c.english = 74;
            c.address = "henan";
            c.IsPartyNumber = false;

            student d = new student();
            d.name = "feng";
            d.math = 85;
            d.english = 40;
            d.address = "jiangxi";
            d.IsPartyNumber = true;

            ArrayList students = new ArrayList();
            students.Add(a);
            students.Add(b);
            students.Add(c);
            students.Add(d);
        }
    }

学习一下。