数字转标准格式:
=INT(A1/256^3)&”.”&INT(MOD(A1,256^3)/256^2)&”.”&INT(MOD(MOD(A1,256^3),256^2)/256)&”.”&MOD(A1,256)
标准格式转数字:
=LEFT(a1,FIND(“.”,a1)-1)*256^3+mid(a1,FIND(“.”,a1)+1,FIND(“.”,a1,FIND(“.”,a1)+1)-FIND(“.”,a1)-1)*256^2+mid(a1,FIND(“.”,a1,FIND(“.”,a1)+1)+1,FIND(“.”,a1,FIND(“.”,a1,FIND(“.”,a1)+1)+1)-FIND(“.”,a1,FIND(“.”,a1)+1)-1)*256+right(a1,len(a1)-FIND(“.”,a1,FIND(“.”,a1,FIND(“.”,a1)+1)+1))