refactor: 后端包结构重构、去除无用的文件

server/pkg/utils/array_utils_test.go

@@ -0,0 +1,17 @@
+package utils
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestArrayCompare(t *testing.T) {
+	newArr := []interface{}{1, 2, 3, 5}
+	oldArr := []interface{}{3, 6}
+	add, del, unmodifier := ArrayCompare(newArr, oldArr, func(i1, i2 interface{}) bool {
+		return i1.(int) == i2.(int)
+	})
+	fmt.Println(add...)
+	fmt.Println(del...)
+	fmt.Println(unmodifier...)
+}