sys.dat

这个程序是我们的大作业,里面有语法分析,词法分析,四原式等等,里面有具体内容和事例,看看就能明白

0:	 =, i, 0, [0]
1:	 =, a, 0, [1]
2:	 =, b, 0, [2]
3:	 y, i, 10, [3]
4:	 G, 5, 15, [3]
5:	 y, i, 5, [5]
6:	 G, 7, 10, [5]
7:	 +, a, i, [7]
8:	 =, a, [7], [8]
9:	 G, 0, 0, 12
10:	 +, b, i, [10]
11:	 =, b, [10], [11]
12:	 +, i, 1, [12]
13:	 =, i, [12], [13]
14:	 G, 0, 0, 3
15:	 +, a, b, [15]
16:	 p, [-1], [-1], [15]