B1公式:=choose(A1+1,5,3,9,5,8,2,5,0,6,8)
公式1:=if(or(a1<0,a1>9,a1=""),"",lookup(a1,{0,1,2,3,4,5,6,7,8,9},{5,3,9,5,8,2,5,0,6,8}))公式2:=if(or(a1<0,a1>9,a1=""),"",choose(a1+1,5,3,9,5,8,2,5,0,6,8))
b1:=choose(a1+1,5,3,9,5,8,2,5,0,6,8)