Flex中，在一个AS文件中定义两个类的实现方式

如下是A.as文件定义了两个类的代码：

package classes {

public class A {
public function A() {
var b:B = new B();
}
}

}
class B {
public function B() {
trace("Hello");
}
}

Class B is only visible to class A - you cannot have more than one visible class in one file (exactly what the error message states).

And you cannot have more than one package in a file.

一个as文件中只能一个package，而且只能有一个对外可见的as类，文件内不可见的类只能在可见的类内使用

http://stackoverflow.com/questions/5888494/flex-4-two-classes-in-one-file