这里的
<#elseif (pageData.author.googlePlus)[0]=="+" || (pageData.author.googlePlus)?
matches("^[+]+")>
<#assign str = (pageData.author.googlePlus)?replace("^[+]+","")>
<link rel="author" href="https://plus.google.com/+${(str)!}/posts" />
<#else>
这有什么不对？我想要这样的东西
Input: +xyz
Output: +xyz
Input: ++xyz
Output: +xyz
Input: +++xyz
Output: +xyz