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public class ReturnThis {
public int age;
public ReturnThis grow()
{
age++;
return this;
}
public static void main (String args []){
ReturnThis rt = new ReturnThis();
rt.grow()
.grow()
.grow();
System.out.println("rt的age成员变量值是:"+ rt.age);
}
}
我想问下,构造方法后面还跟着一个grow()函数是什么意思???