feat:添加负样本采样脚本

src/main/java/examples/extractor/v20250218/ExtractFeature20250218.java

@@ -120,7 +120,7 @@ public class ExtractFeature20250218 {
         List<String> indexList = Arrays.asList("is_share", "share_cnt", "is_return_1", "return_1_uv", "click", "str_one", "ros_one", "str", "ros", "str_plus", "ros_minus", "rovn");
         for (String time : times) {
             for (String index : indexList) {
-                double value = Double.parseDouble(featureMap.getOrDefault(index + "_" + time, "0").toString());
+                double value = Double.parseDouble(c1Feature.getOrDefault(index + "_" + time, "0").toString());
                 featureMap.put("c1_" + index + "_" + time, value);
             }
             double rovn = Double.parseDouble(c1Feature.getOrDefault("rovn_" + time, "0").toString());