p = "for $floor in Building/Floors/Floor "
"let $Name := $floor/Name"
"where $floor/@GUID !=\"6A26A83F0EDA42F88088BDD4CF06A077\" "
"order by $Name "
"let $Name := $floor/Name"
"where $floor/@GUID !=\"6A26A83F0EDA42F88088BDD4CF06A077\" "
"order by $Name "
"return $Name ";
没行后面要有空库,否则$floor/Name where会解析成$floor/Namewhere
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