合肥工业大学编译原理实验

宣城校区
实验报告
课程名称编译原理
专业班级计算机0001班
学生姓名及学号赵保飞 68
指导教师李芒宏
实验地点计算机中心楼第四机房
2017 ～ 2018 学年第一学期
《编译原理》课程实验报告实验名称词法分析设计
姓名赵保飞系院专业计算机科学
与技术
班级
计算机01
班
学号68
实验日期指导教师李芒宏成绩
一、实验目的和要求
通过本实验的编程实践，使学生了解词法分析的任务，掌握词法分析程序设
计的原理和构造方法，使学生对编译的基本概念、原理和方法有完整的和清楚的
理解，并能正确地、熟练地运用。

二、实验原理
（1）实验数据结构说明
K[]String数组-关键字表；s[]char数组—分界符；m[]char数组—算术运算符；r[]String数组—关系运算符；ArrayList型String数组ci—常数；ArrayList型String数组id—标识符（2）实验算法描述
（3）算法流程图
三、源程序代码和测试结果
package lexicalAnalysis;
import.*;
import.*;
public class lexicalAnalysis{
static String
k[]={"for","main","if","while","void","public","static","printf","scanf","asm","do","return","typedef ","auto","double","break","short","using","default","long"};ength()==1){quals(b))){
display(4,r[i],' ');ength()==2){quals(a))){
display(4,r[i],' ');
;
import.*;
import WinGrid extends JFrame{
GridLayout grid;
JPanel chessboard;
JTextField text;
JTextArea textShow;
JButton button;
ReaderListen listener;
WinGrid(){
init();
setVisible(true);
setDefaultCloseOperation;
}
void init(){
setLayout(new FlowLayout());
text=new JTextField(10);
setBounds(466,166,500,400);
button=new JButton("读取");
textShow=new JTextArea(9,30);
listener=new ReaderListen();
tempp[k][1]=temp0_string; tempp[k][2]=(i);
tempp[k][3]=rule;
tempp[k][4]=();
v=();
action="pop";
if(vnNum(v)!=-1){
left = 'E';
strcpy(s_have[1].sright, "E+T");left = 'E';
strcpy(s_have[2].sright, "T");left = 'T';
strcpy(s_have[3].sright, "T*F");left = 'T';
strcpy(s_have[4].sright, "F");left = 'F';
strcpy(s_have[5].sright, "(E)");left = 'F';
strcpy(s_have[6].sright, "i");ove[0] = 5;
action[0].move[3] = 4;
action[1].move[1] = 6;
action[2].change[1] = 2;
action[2].move[2] = 7;
action[2].change[4] = 2;
action[2].change[5] = 2;
action[3].change[1] = 4;
action[3].change[2] = 4;
action[3].change[4] = 4;
action[3].change[5] = 4;
action[4].move[1] = 5;
action[4].move[3] = 4;
action[5].change[1] = 6;
action[5].change[2] = 6;
action[5].change[4] = 6;
action[5].change[5] = 6;
action[6].move[0] = 5;
action[6].move[3] = 4;
action[7].move[0] = 5;
action[7].move[3] = 4;
action[8].change[1] = 6;
action[8].change[4] = 11;
find_table(s, exp_first_char, 1);
break;
case '*':
find_table(s, exp_first_char, 2);
break;
case '(':
find_table(s, exp_first_char, 3);
break;
case ')':
find_table(s, exp_first_char, 4);
break;
case '#':
find_table(s, exp_first_char, 5);
break;
}
}
}
int main()
{
//cout << "输入要判断的分析串:";
string temp;
cin >> temp;
for (int i = 0;i < ();i++)
inputstring[i] = temp[i];
inputstring[()] = '#';
instr_index = () + 1;
Initlize();
cout << "步骤 \t\t 状态栈 \t符号栈 \t 输入串 \t 动作\n";
start_find();
return 0;
}。