fix set and i118 issues

demo/numb.yaml

@@ -10,5 +10,3 @@ ranges:
   medium: 11-99
   large: 10001-99999
 postfix: ","
-loop: 3
-loopfix: "|"

demo/output.txt

-济南市
-青岛市
-淄博市
-枣庄市
-东营市
-烟台市
-潍坊市
-济宁市
-泰安市
-威海市
-日照市
-莱芜市
-临沂市
-德州市
+int_1,|int_2,|int_3,
+int_4,|int_5,|int_6,
+int_7,|int_8,|int_9,
+int_1,|int_2,|int_3,
+int_4,|int_5,|int_6,
+int_10001,|int_10002,|int_10003,
+int_10004,|int_10005,|int_10006,
+int_10007,|int_10008,|int_10009,
+int_10010,|int_10011,|int_10012,
+int_10013,|int_10014,|int_10015,
+int_1,|int_2,|int_3,
+int_4,|int_5,|int_6,
+int_7,|int_8,|int_9,
+int_1,|int_2,|int_3,

demo/test.yaml

@@ -12,6 +12,8 @@ fields:
     note: 引用同级目录中的yaml文件，取small和large两个分组的值
     from: numb.yaml
     use: small,large
+    loop: 3
+    loopfix: "|"
     expect: 1,2,3,101,102...
 
   - field: field2