更换package结构

tree/vbt/iterator.go

@@ -1,7 +1,7 @@
 package vbt
 
 import (
-	lastack "github.com/474420502/focus/stack/listarraystack"
+	lastack "focus/stack/listarraystack"
 )
 
 type Iterator struct {

tree/vbt/iterator_test.go

@@ -4,7 +4,7 @@ import (
 	"sort"
 	"testing"
 
-	"github.com/474420502/focus/compare"
+	"focus/compare"
 )
 
 func TestIerator(t *testing.T) {

tree/vbt/vbt.go

@@ -3,8 +3,8 @@ package vbt
 import (
 	"github.com/davecgh/go-spew/spew"
 
-	"github.com/474420502/focus/compare"
-	"github.com/474420502/focus/tree"
+	"focus/compare"
+	"focus/tree"
 )
 
 type Node struct {

tree/vbt/vbt_test.go

@@ -11,7 +11,7 @@ import (
 	"github.com/Pallinder/go-randomdata"
 	"github.com/davecgh/go-spew/spew"
 
-	"github.com/474420502/focus/compare"
+	"focus/compare"
 )
 
 func loadTestData() []int {