空白儲存格的處理方式
在較舊版的軟體中，空白儲存格在部分環境均會強制為數值 0，在其他環境中則會強制為空白字串，但直接比較除外，在這類比較中，若 A1 是空白，則 =A1=0 和 =A1="" 均會產生 TRUE。目前已繼承空白，仍可繼續使用，因此，若因此搜尋而傳回了空白儲存格，則 =VLOOKUP(...)=0 與 =VLOOKUP(...)="" 均會傳回 TRUE。
對於空白儲存格的簡單參照仍會顯示為數值 0，但其類型不再需要是數值，因此也可以視需要與參照儲存格進行比較。
針對下列範例，A1 包含一個數字、B1 是空白，而 C1 則包含對於 B1 的參照：
|
Case |
Formula |
Results and comments |
|---|---|---|
|
A1: 1 |
C1: =B1 |
Displays 0 |
|
=B1=0 |
||
|
=B1="" |
TRUE |
|
|
=C1=0 |
TRUE |
|
|
=C1="" |
TRUE (previously was FALSE) |
|
|
=ISNUMBER(B1) |
||
|
=ISNUMBER(C1) |
FALSE (previously was TRUE) |
|
|
=ISNUMBER(VLOOKUP(1;A1:C1;2)) |
FALSE (B1) |
|
|
=ISNUMBER(VLOOKUP(1;A1:C1;3)) |
FALSE (C1, previously was TRUE) |
|
|
=ISTEXT(B1) |
FALSE |
|
|
=ISTEXT(C1) |
TRUE |
|
|
=ISTEXT(VLOOKUP(1;A1:C1;2)) |
FALSE (B1, previously was TRUE) |
|
|
=ISTEXT(VLOOKUP(1;A1:C1;3)) |
FALSE (C1) |
|
|
=ISBLANK(B1) |
TRUE |
|
|
=ISBLANK(C1) |
TRUE |
|
|
=ISBLANK(VLOOKUP(1;A1:C1;2)) |
TRUE (B1, previously was FALSE) |
|
|
=ISBLANK(VLOOKUP(1;A1:C1;3)) |
FALSE (C1) |
請注意，Microsoft Excel 的運作方式不同，而且一律會傳回數值，做為對於空白儲存格之參照或含有空白儲存格結果之公式的結果。例如：
|
Case |
Formula |
Results and comments |
|---|---|---|
|
A1: <Empty> |
B1: =A1 |
Displays 0, but is just a reference to an empty cell. |
|
=ISNUMBER(A1) |
FALSE |
|
|
=ISTEXT(A1) |
FALSE |
|
|
=A1=0 |
TRUE |
|
|
=A1="" |
TRUE |
|
|
=ISNUMBER(B1) |
FALSE (Microsoft Excel: TRUE) |
|
|
=ISTEXT(B1) |
FALSE |
|
|
=B1=0 |
TRUE |
|
|
=B1="" |
TRUE (Microsoft Excel: FALSE) |
|
|
C1: =VLOOKUP(...) with empty cell result |
displays empty (Microsoft Excel: displays 0) |
|
|
=ISNUMBER(VLOOKUP(...)) |
FALSE |
|
|
=ISTEXT(VLOOKUP(...)) |
FALSE |
|
|
=ISNUMBER(C1) |
FALSE (Microsoft Excel: TRUE) |
|
|
=ISTEXT(C1) |
FALSE |