增加写入

src/main/scala/com/aliyun/odps/spark/examples/makedata_ad/v20240718/diff_data_20240718.scala

@@ -62,7 +62,7 @@ object diff_data_20240718 {
         if (key != "logkey" && map2.contains(key) && value1 != map2(key)) {
           val res = s"LogKey: $logkey, Key: $key, RDD1 Value: $value1, RDD2 Value: ${map2(key)}"
           println(res)
-          result += res
+          result = result :+ res
         }
       }
     }
@@ -72,7 +72,7 @@ object diff_data_20240718 {
     rdd1Only.foreach { case (logkey, map) =>
       val res = s"LogKey: $logkey, Map only exists in RDD1: $map"
       println(res)
-      result += res
+      result = result :+ res
     }
 
     // 检查 rdd2 中存在但 rdd1 中不存在的 logkey
@@ -80,7 +80,7 @@ object diff_data_20240718 {
     rdd2Only.foreach { case (logkey, map) =>
       val res = s"LogKey: $logkey, Map only exists in RDD2: $map"
       println(res)
-      result += res
+      result = result :+ res
     }
 
     val rdd = sc.parallelize(result)