请问:
if (J=0) and (
((C[0]='?) and (C[1]='?)) or
((C[0]='?) and (C[1]='?)) or
((C[0]='?) and (C[1]='?)) or
((C[0]='?) and (C[1]='?)) or
((C[0]='?) and (C[1]='?)) or
((C[0]='?) and (C[1]='?)) or
((C[0]='?) and (C[1]='?)) or
((C[0]='?) and (C[1]='?)) or
((C[0]='?) and (C[1]='?))) then
中的'?应为何