解释vba语句

If Target.Column = 1 And Target.Row > 3 And Target.Row < 24 Then
rng = Sheets("货品资料").[A1].CurrentRegion
Set dic = CreateObject("scripting.dictionary")
For r = 2 To UBound(rng)
For c = 2 To UBound(rng, 2)
Y = rng(r, 1) & " " & rng(1, c)
dic(Y) = rng(r, c)
Next c
Next r
rr = Target.Row
For c = 2 To 5
Y = Cells(rr, 1) & " " & Cells(3, c)
Cells(rr, c) = dic(Y)
Next c
Y = Cells(rr, 1) & " 单价/入库"
Cells(rr, 7) = dic(Y)

End If

If Target.Column = 1 And Target.Row > 3 And Target.Row < 24 Then
'判断当前范围是否在A列的第3行到第24行之间
       rng = Sheets("货品资料").[A1].CurrentRegion
'设置rng范围
       Set dic = CreateObject("scripting.dictionary")
'设置字典
       For r = 2 To UBound(rng)
           For c = 2 To UBound(rng, 2)
               Y = rng(r, 1) & " " & rng(1, c)
'将rng(r, 1）和rng(1, c)合并
               dic(Y) = rng(r, c)
'将Y写入字典
           Next c
       Next r
       rr = Target.Row
       For c = 2 To 5
           Y = Cells(rr, 1) & " " & Cells(3, c)
'将Cells(rr, 1) & " " & Cells(3, c)写成Y
           Cells(rr, c) = dic(Y)
'将字典 dic(Y)赋值给Cells(rr, c)
       Next c
           Y = Cells(rr, 1) & " 单价/入库"
           Cells(rr, 7) = dic(Y)
'将Cells(rr, 7)写入 dic(Y)
End If

sub 重复次数1()     dim arr, k%, i%, n% '变量声明，arr为字节型byte，k、i、n都为整型integer     set arr = range("a1").currentregion '设置变量arr活动单元格a1所在的矩形区域     for k = 6 to cells(rows.count, 1).end(3).row 'k值从6到第1列有数据的最后1行的行号递增，步长为1         for i = 6 to cells(rows.count, 1).end(3).row 'k值从6到第1列有数据的最后1行的行号递增，步长为1             if cells(k, 1) = cells(i, 8) then '第1列的k行单元格等于第8列的i行单元格则执行下面语句，否则跳过                 cells(k, 5) = cells(k, 5) + 1 '第5列k行单元格的值等于第5列k+1行单元格的值                 cells(i, 8).font.colorindex = 3 '改变第8列i行的字体颜色号为3（我记得好像是红色）                 cells(k, 1).font.colorindex = 3 '改变第1列k行的字体颜色号为3             end if         next i     next k end sub