1 #给 t 赋值为Thue,T 赋值为False,f 赋值为False,F 赋值为True 2 t = True 3 T = False 4 f = False 5 F = True 6 7 #两边均正确取最右,不然False 8 t and F 9 t and T 10 T and f 11 f and F 12 13 #两边都正确取最近(左);若有一个正确,则取正确的那个;不然False 14 t or F 15 t or T 16 T or f 17 f or F 18 19 #取非,逻辑取反 20 not True 21 not False