=SUBSTITUTE(A2,LEFT(A2,LENB(A2)-LEN(A2)),LEFT(A2,LENB(A2)-LEN(A2))&"/")
B2输入 =SUBSTITUTE(A2,LEFT(A2,LENB(A2)-LEN(A2)),LEFT(A2,LENB(A2)-LEN(A2))&"/")公式下拉