具有多个值的一个变量的IF语句

Question

是否有更好的方法来编写此IF语句来测试变量的多个选项？

<#if PRINTER_PET.RETAILER_NAME = 'BEST BUY' || PRINTER_PET.RETAILER_NAME = 'Best Buy Purchasing LLC'>
document 1 
<#elseif  PRINTER_PET.RETAILER_NAME = 'AMAZON' || PRINTER_PET.RETAILER_NAME = 'Amazon Fulfillment Services Inc Attn: Amazon.com' >
document 2
</#if>

谢谢Erica

Answer 1

你可以将PRINTER_PET.RETAILER_NAME提取到一个变量中，比如<#assign retName = PRINTER_PET.RETAILER_NAME>，然后它会更短（<#if retName == 'foo' || retName == 'bar'>等）。另外，如果你有很多字符串要比较，<#if ['foo', 'bar', 'baaz']?seq_contains(retName)>可能会更好。

Answer 2

关注Freemrker Comparison示例并使用==和"：

<#if PRINTER_PET.RETAILER_NAME == "BEST BUY" || PRINTER_PET.RETAILER_NAME == "Best Buy Purchasing LLC">
document 1 
<#elseif  PRINTER_PET.RETAILER_NAME == "AMAZON" || PRINTER_PET.RETAILER_NAME == "Amazon Fulfillment Services Inc Attn: Amazon.com" >
document 2
</#if>

user == "Big Joe"中的<#if ...>表达式将评估为布尔值true，因此上面将说“它是大乔”。

逻辑或：||