表达式31: "n" Subscript, "s" , Baseline equals "c" Subscript, 0 , Baseline , "c" Subscript, 1 , Baseline , "c" Subscript, 2 , Baseline , "c" Subscript, 3 , Baseline , "c" Subscript, 4 , Baseline , "c" Subscript, 5 , Baseline , "c" Subscript, 6 , Baseline , "c" Subscript, 7 , Baseline , "c" Subscript, 8 , Baselinens=c0,c1,c2,c3,c4,c5,c6,c7,c8