B2公式:
=IF(A1="","",TEXT(CHOOSE(A1+1,45,56,67,78,89,90,1,12,23,34),"00"))
或者:
=IF(A1="","",MID("45566778899001122334",A1*2+1,2))
B1公式:
=IF(A1="","",VLOOKUP(A1,{0,"45";1,"56";2,"67";3,"78";4,"89";5,"90";6,"01";7,"12";8,"23";9,"34"},2,))
或
B1公式:=IF(A1="","",INDEX({"45","56","67","78","89","90","01","12","23","34"},A1+1))
=if(a1=0,"45",if(a1=1,"56",if(a1=2,"67",if(a1=3,"78",if(a1=4,"89",if(a1=5,"90",if(a1=6,"01",if(a1=7,"12",if(a1=8,"23","34"))))))))))
=if(A1="0123456789","45 56 67 78 89 90 01 12 23 34","")