简单的递归即可 import . "nc_tools" type TreeNode struct { Val int Left *TreeNode Right *TreeNode } func mergeTrees( t1 *TreeNode , t2 *TreeNode ) *TreeNode { if t1==nil { return t2 } if t2==nil { return t1 } t1.Val+=t2.Val t1.Left=mergeTrees(t1.Left,t...