编译器中的词法分析

				package cmm.cmmcc;
				
				/**
				 * 目标代码类，继承操作符类型接口
				 * @author Huang Xuanxing
				 *
				 */
				public class Code implements IOperatorType {
					private int operator; // 操作符
					private String oprand1; // 操作数1
					private String oprand2; // 操作数2
					public int address; // 地址
					public int next; // 下条代码地址
					public static final int JUMPAHEAD = -1; // 需回填下条代码地址
					public static final int JUMPBACK = -2; // 需向前填下条代码地址
					
					public Code(int inOp) {
						operator = inOp;
						oprand1 = "";
						oprand2 = "";
					}
					
					public Code(int inOp, String inOp1, String inOp2) {
						operator = inOp;
						oprand1 = inOp1;
						oprand2 = inOp2;
					}
					
					/**
					 * 设置下条代码地址
					 *
					 */
					public void setNext() {
						//
					}
				}