第2章\comp4.m
.....\li2_1.m
.....\li2_2.m
.....\li2_21.m
.....\li2_22.m
.....\li2_23.m
.....\li2_27.m
.....\li2_3.m
.....\li2_4.m
.....\li2_5.m
.....\testvar1.m
.....\xrandpA.m
.....\xrandpB.m
.....\xstrto.m
第2章