哈哈，这个解释最准确！！
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Description

Reports the number of the current row (the row with focus).

Syntax

CurrentRow ( )

Return value

Long. Returns the number of the row if it succeeds and 0 if no row is current.
What row is current The current row is not always a row displayed on the screen. For example, if the cursor is on row 7 column 2 and the user uses the scroll bar to scroll to row 50, the current row remains row 7 unless the user clicks row 50.