在clojure中的单个向量中串联/合并向量

My map函数为我提供输出：

([[:db/retract 1 :a 23] [:db/retract 1 :b 34]] [[:db/retract 2 :v 45] [:db/retract 2 :o 89]] [[:db/retract 4 :l 6]])

但我想要这样的：

([[:db/retract 1 :a 23] [:db/retract 1 :b 34] [:db/retract 2 :v 45] [:db/retract 2 :o 89][:db/retract 4 :l 6]])

我们应该如何将向量合并到单个向量中

给定

(def v '([[:db/retract 1 :a 23] [:db/retract 1 :b 34]] [[:db/retract 2 :v 45] [:db/retract 2 :o 89]] [[:db/retract 4 :l 6]])) 

你可以用

(apply concat v)

得到

([:db/retract 1 :a 23] [:db/retract 1 :b 34] [:db/retract 2 :v 45] [:db/retract 2 :o 89] [:db/retract 4 :l 6])

([[:db/retract 1 :a 23] [:db/retract 1 :b 34] [:db/retract 2 :v 45] [:db/retract 2 :o 89] [:db/retract 4 :l 6]])

---

如果确实需要列表中的内部向量，请使用

`(~(vec (apply concat v)))

得到

([:db/retract 1 :a 23] [:db/retract 1 :b 34] [:db/retract 2 :v 45] [:db/retract 2 :o 89] [:db/retract 4 :l 6])

([[:db/retract 1 :a 23] [:db/retract 1 :b 34] [:db/retract 2 :v 45] [:db/retract 2 :o 89] [:db/retract 4 :l 6]])