谁帮我解释下这段c#代码

显示全部楼层 · 2010-7-4 20:08:51

public class Teacher {

public string name;

public Teacher(string name){

this.name=name;

}

public static void Main(){

Teacher tea = new Teacher(”ACCP3.0”);//Teacher不是一个类吗，这里怎么又直接写他的Teacher方法了。

Teacher teaNew =new Teacher(”ACCP4.0”);

tea =teaNew;

teaNew.name=”ACCP5.0”;

Console.WriteLine(tea.name);

Console.WriteLine(teaNew.name);

teaNew = null;

if(tea!=null)

Console.WriteLine(tea.name);

}

}

千问 · 2010-7-4 20:08:51

Teacher是个类，而且它有个带参的构造方法我们是用类来实例化一个对象，所以要那要写。。如果你没有写 public Teacher(string name){
this.name=name;
}方法的话，就直接Teacher teaNew =new Teacher()来实例化一个对象，因为类本身默认有个无参的构造函数，当你为它添加带参构函的时候，此时无参构造函数则被取代，所以要Teacher teaNew =new Teacher(”ACCP4.0”);实例化带参构造函数