我们来描述一个数据结构,一个公司,下有很多部门,一个部门有很多职员。
ok,我们先实现职员数据结构
我们再定义部门的数据结构,该结构包含了职员的集合
再对StaffCollection依葫芦画瓢,再写一个DepartmentCollection
注意观察DepartmentCollection和StaffCollection的ToArray方法,封装了ToArray复杂性。
最后,我们实现公司的结构
现在我们有了5个类
Company
---DepartmentCollection
------Department
---------StaffCollection
------------Staff
我们看下具体的应用
继续优化,请看下篇,索引器的重载
ok,我们先实现职员数据结构
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public class Staff
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{
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//默认为男性
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public Staff(string name):this(name,Sex.Man)
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{
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}
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public Staff(string name,Sex sex)
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{
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Name = name;
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Sex = sex;
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}
12![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public readonly string Name;
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public readonly Sex Sex;
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}
16![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
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public enum Sex
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{
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Man,
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Female
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}
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then, 我们再来处理职员的集合
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public class StaffCollection : System.Collections.CollectionBase
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{
3![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public int Add(string name)
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{
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return Add(name, Sex.Man);
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}
8![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public int Add(string name, Sex sex)
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{
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return Add(new Staff(name, sex));
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}
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public int Add(Staff staff)
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{
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return this.List.Add(staff);
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}
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public void AddRange(Staff[] staffs)
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{
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for (int i = 0; i <= staffs.Length - 1; i++)
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{
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Add(staffs[i]);
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}
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}
24![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public void Remove(Staff staff)
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{
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this.List.Remove(staff);
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}
29![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public Staff[] ToArray()
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{
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Staff[] tmpStaffs = new Staff[this.Count];
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for (int i = 0; i <= this.Count - 1; i++)
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{
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tmpStaffs[i] = (Staff)this[i];
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}
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return tmpStaffs;
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}
39![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public Staff this[int index]
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{
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set
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{
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this.List[index] = value;
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}
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get
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{
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return (Staff)this.List[index];
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}
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}
51![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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}
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我们再定义部门的数据结构,该结构包含了职员的集合
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public class Department
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{
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public StaffCollection Staffs=new StaffCollection();
4![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public Department(string name)
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{
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Name=name;
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}
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public readonly string Name;
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}
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再对StaffCollection依葫芦画瓢,再写一个DepartmentCollection
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public class DepartmentCollection : System.Collections.CollectionBase
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{
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public int Add(string departmentName)
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{
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return Add(new Department(departmentName));
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}
7![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public int Add(Department department)
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{
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return this.List.Add(department);
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}
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public void AddRange(Department[] departments)
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{
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for (int i = 0; i <= departments.Length - 1; i++)
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{
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Add(departments[i]);
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}
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}
19![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public void Remove(Department department)
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{
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this.List.Remove(department);
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}
24![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public Department[] ToArray()
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{
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Department[] tmpDepartments = new Department[this.Count];
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for (int i = 0; i <= this.Count - 1; i++)
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{
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tmpDepartments[i] = (Department)this[i];
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}
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return tmpDepartments;
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}
34![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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public Department this[int index]
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{
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set
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{
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this.List[index] = value;
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}
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get
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{
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return (Department)this.List[index];
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}
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}
46![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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}
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注意观察DepartmentCollection和StaffCollection的ToArray方法,封装了ToArray复杂性。
最后,我们实现公司的结构
1
public class Company
2
{
3
public DepartmentCollection Departments = new DepartmentCollection();
4
}
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现在我们有了5个类
Company
---DepartmentCollection
------Department
---------StaffCollection
------------Staff
我们看下具体的应用
1
public static void Main(string[] args)
2
{
3![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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Company com = new Company();
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com.Departments.Add("HR");
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com.Departments.Add("Market");
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com.Departments.Add("Development");
8![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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com.Departments[0].Staffs.Add("Alice");
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com.Departments[0].Staffs.Add("Amy");
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com.Departments[0].Staffs.Add("Ellen");
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com.Departments[2].Staffs.Add("Albert");
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com.Departments[2].Staffs.Add("Mark");
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com.Departments[2].Staffs.Add("Kevin");
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com.Departments[2].Staffs.Add("Neil");
16![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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for (int i = 0; i <= com.Departments.Count - 1; i++)
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{
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System.Console.WriteLine(com.Departments[i].Name);
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for (int j = 0; j <= com.Departments[i].Staffs.Count - 1; j++)
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{
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System.Console.WriteLine("\t{0}{1}", com.Departments[i].Staffs[j].Name, com.Departments[i].Staffs[j].Sex == Sex.Man ? "先生" : "女士");
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}
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}
25![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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}
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继续优化,请看下篇,索引器的重载