Excel公式中的“ $”是什么意思？ 例如：$ B $ 4

Question

What does $B$4 mean in Excel?
Here's a sample code:

Cells(7, 15).Value = "=0.1*$B$4*M7*N7"

and

Cells(7, 17).Value = "=P7*1.3*$B$4"

Answer 1

The $ sign causes the cell column or row or both in a formula to be fixed.

That is, if you drag the formula cell horizontally or vertically in order to copy the formula, Excel will not adjust this value.

For example :

 Cell   Formula 
  A0     =$B4

If I drag this horizontally I will get :

 Cell   Formula 
  B0     =$B4
  C0     =$B4

If I drag this vertically I will get :

 Cell   Formula 
  A1     =$B5
  A2     =$B6

Without the dollar sign :

If I drag this horizontally I will get :

 Cell   Formula 
  B0     =C4
  C0     =D4

If I drag this vertically I will get :

 Cell   Formula 
  A1     =B5
  A2     =B6

Answer 2

The dollar sign allows you to fix either the row, the column or both on any cell reference, by preceding the column or row with the dollar sign.

In your example you fix the column to B and the row to 4 because you probably want to take in consideration only that cell for your formula.