首先放上代码: 1 <?php 2 class MagicTest{ 3 //__tostring会在把对象转换为string的时候自动调用 4 public function __tostring() { 5 return "This is the class MagicTest"; 6 } 7...
1、应用方法 hasOwnProperty 2、应用实例 class Student{ constructor(sno,sname,sage,ssex) { this.sno = sno; this.sname = sname; this.sage = sage; this.ssex = ssex;...
import com.wyz.bean.BaseVo; import net.sf.cglib.beans.BeanGenerator; import org.junit.Test; import java.lang.reflect.Method; public class MyTest1 { @Test public void te...
stringstr1=string.Format("{0:N1}",56789); //result: 56,789.0 stringstr2=string.Format("{0:N2}",56789); //result: 56,789.00 stringstr3=string.Format("{0...
toString()方法: java.lang.Object类的toString()方法的定义如下: public String toString(){ return getClass().getName()+"@"+Integer.toHexString(hashCode()); } 1.当打印一个对象的引用时,实...
1 class a{ 2 3 } 4 5 class b extends a{ 6 7 String rr = "zzz"; 8 9 public String toString(){ 10 11 return "aa"; 12 13 } 14 15 }...