如下第一条语句可以查到数据：
match (v:contents {con_name: “con_name200”})–>(v2:contents) where id(v2) in [“con300”,“con301”,“con100”] return v2;
±------------------------------------------------------------------------+
| v2 |
±------------------------------------------------------------------------+
| (“con301” :contents{con_id: 301, con_name: “con_name301”, con_type: 1}) |
| (“con300” :contents{con_id: 300, con_name: “con_name300”, con_type: 1}) |
±------------------------------------------------------------------------+
为什么第二条语句查不到数据？
MATCH (v:contents {con_name: “con_name200”})–>(v2:contents) return v2;
±—+
| v2 |
±—+
±—+
Empty