false(0)=完全相同;true(1)=近似
=VLOOKUP( key, table, 第n欄, FALSE )
=VLOOKUP( "1A01", A1:F1000, 2, 0 )
=COUNTIF( A:A, "Le*" )
=SUMPRODUCT( A1:A10, B1:B10 )
=RIGHT( Cell, n個字符 )