LEFT(A2,FIND("X",SUBSTITUTE(A2,".","X",3))-1)&"."&IF(LEN(RIGHT(A2,LEN(A2)-FIND("X",SUBSTITUTE(A2,".","X",3))))=3,RIGHT(A2,LEN(A2)-FIND("X",SUBSTITUTE(A2,".","X",3))),IF(LEN(RIGHT(A2,LEN(A2)-FIND("X",SUBSTITUTE(A2,".","X",3))))=2,"0"&RIGHT(A2,LEN(A2)-FIND("X",SUBSTITUTE(A2,".","X",3))),"00"&RIGHT(A2,LEN(A2)-FIND("X",SUBSTITUTE(A2,".","X",3)))))
假设为IP地址在A1单元格 则在其他地方输入
=LEFT(A1,LEN(A1)-RIGHT(A1))&TEXT(RIGHT(A1),"000")
不好意思 写错了 修改了两下
或者用公式 =MID(A1,1,LEN(A1)-RIGHT(A1))&TEXT(RIGHT(A1),"000")