浅克隆：
package testclone;
public class ShallowClone implements Cloneable {
public String name;
public String[] name2;
public ShallowClone() {
name2 = new String[2];
}
public Object clone() {
ShallowClone o = null;
try {
o = (ShallowClone) super.clone();
} catch (CloneNotSupportedException
