您可以对多个条件使用常规C#或Java语法：

<<if [Condition1 || Condition2]>>
Write something
<</if>>

<<if [Condition1 && Condition2]>>
Write something
<</if>>

例如，请看下面的简单代码：

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

builder.Writeln("<<if [1!=1 || 2==2]>>Condition is true<<else>>Condition is false<</if>>");
builder.Writeln("<<if [1!=1 && 2==2]>>Condition is true<<else>>Condition is false<</if>>");

ReportingEngine engine= new ReportingEngine();
engine.BuildReport(doc, new object());

doc.Save(@"C:\Temp\out.docx");