使用Lotus公式更新列表元素

Question

我正尝试使用Lotus公式更新列表中的元素。

我以为你会做这样的：

x := "0":"0":"0"; 
x[1] := "1"; 

但是，当我尝试保存我得到以下错误：

:= must be immediately preceded by a field or variable name 

Answer 1

从Lotus Domino Designer 7 Help：

The subscript operator cannot be used on the left side of an assignment statement. That is, you cannot assign a value to a subscripted element. You must build the complete list and then assign it. For example, if Categories is a 3-element list and you want to assign a new value to element 2:

FIELD Categories := Categories[1] : "CatNew" : Categories[3] 

您可以通过Ÿ通过使用@Implode，@Explode或@Replace。但如果你真的需要它，你可以这样做：

REM {FieldName[Index] := NewVal}; 
Index := 2; 
NewVal := "CatNew"; 

maxIndex := @Elements(FieldName); 
PrePart := @If(Index > 1; @Subset(FieldName; Index-1); ""); 
PostPart := @If(Index < maxIndex; @Subset(FieldName; (Index-maxIndex)); ""); 

Field FieldName := PrePart : NewVal : PostPart