public class Cache {
	int age;//記錄未被使用的時間
	char block;
	//int flag;//標志,用來記錄此塊Cache是否是空0;
	public Cache() {
		this.age=-1;
		this.block=' ';
		//flag=0;
	}
	public Cache(int age,char block) {
		this.age=age;
		this.block=block;
	}
}