If-then-Else Statements－－RTF文档_bi publisher rtf if语句-优快云博客

BI Publisher支持类似于"if-then-else"的编程结构，允许根据条件展示结果。例如，可以嵌套使用这些语句来测试元素值，如AMOUNT。如果值大于1000显示"Higher"，小于1000显示"Lower"，等于1000则显示"Equal"。

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帮助原文是这样写的：

BI Publisher supports the common programming construct "if-then-else". This is extremely useful when you need to test a condition and conditionally show a result. For example:

IF X=0 THEN
 Y=2
ELSE
 Y=3
END IF

You can also nest these statements as follows:

IF X=0 THEN
 Y=2
ELSE
 IF X=1 THEN
   Y=10
 ELSE Y=100
END IF

Use the following syntax to construct an if-then-else statement in your RTF template:

<?xdofx:if element_condition then result1 else result2 end if?>

For example, the following statement tests the AMOUNT element value. If the value is greater than 1000, show the word "Higher"; if it is less than 1000, show the word "Lower"; if it is equal to 1000, show "Equal":

<?xdofx:if AMOUNT > 1000 then 'Higher'
  else
  if AMOUNT < 1000 then 'Lower'
   else
   'Equal'
end if?>

我给大家加个例子：

stime: <?stime?> 
F: <?for-each:WIND_DATA1_ROW?>
dayday : <?dayday?>
wdpower123 : <?xdofx:if wdpower=-1 then '无采样数据' else wdpower end if?>
{这里特别说明：这个就是if，else的用法了：如果wdpower这个变量里的值是-1，则显示'无采样数据' ，else否则，显示变量wdpower里的数据}
fs:<?fs?>
E:<?end for-each?>
 
 
stime日时间（小时） 瞬时最大功率 整点风速
F dayday点 wdpower123 fs E
 
看一下结果：
 
 
 
 
 
 else wdpower end if?>