diff --git a/src/action/generator.go b/src/action/generator.go
index 7bc2d27fd3bbfe642526b651370f58f1507dd2cf..5b631557fc85c1573f4a7d282f21d6fd918a3738 100644
--- a/src/action/generator.go
+++ b/src/action/generator.go
@@ -30,7 +30,6 @@ func Generate(file string, total int, fields string, out string, table string) {
 	Print(rows)
 }
 
-
 func Print(rows [][]string) {
 	width := stringUtils.GetNumbWidth(len(rows))
 
diff --git a/src/gen/generator.go b/src/gen/generator.go
index 79adb287632c352c93bc2749b328b26b08d6675a..6d6e3e212c030494946acd4c2d3d6173ce76c6cf 100644
--- a/src/gen/generator.go
+++ b/src/gen/generator.go
@@ -27,35 +27,55 @@ func Generate(def *model.Definition, total int, fields string, out string, table
 				continue
 			}
 
+			if field.Loop == 0 {
+				field.Loop = 1
+			}
+
 			prefix := field.Prefix
 			postfix := field.Postfix
-			indexOfRow = i % len(fieldMap[field.Name])
-
 			if len(rows) == i { rows = append(rows, make([]string, 0)) }
 
-			str := "n/a"
-			val := fieldMap[field.Name][indexOfRow]
-			switch val.(type) {
-				case int64:
-					str = strconv.FormatInt(val.(int64),10)
-				case float64:
-					precision := 0
-					if field.Precision > 0 {
-						precision = field.Precision
-					}
-					str = strconv.FormatFloat(val.(float64), 'f', precision, 64)
-				case byte:
-					str = string(val.(byte))
-				default:
+			loopStr := ""
+			for j := 0; j < field.Loop; j++ {
+				if loopStr != "" {
+					loopStr = loopStr + field.Loopfix
+				}
+				str := GetFieldStr(field, fieldMap, indexOfRow)
+				loopStr = loopStr + str
+
+				indexOfRow++
+				if indexOfRow == len(fieldMap[field.Name]) { // no enough
+					indexOfRow = 0
+				}
 			}
 
-			rows[i] = append(rows[i], prefix + str + postfix)
+			rows[i] = append(rows[i], prefix + loopStr + postfix)
 		}
 	}
 
 	return rows
 }
 
+func GetFieldStr(field model.Field, fieldMap map[string][]interface{}, indexOfRow int) string {
+	str := "n/a"
+	val := fieldMap[field.Name][indexOfRow]
+	switch val.(type) {
+		case int64:
+			str = strconv.FormatInt(val.(int64), 10)
+		case float64:
+			precision := 0
+			if field.Precision > 0 {
+				precision = field.Precision
+			}
+			str = strconv.FormatFloat(val.(float64), 'f', precision, 64)
+		case byte:
+			str = string(val.(byte))
+		default:
+	}
+
+	return str
+}
+
 func GenerateFieldArr(field *model.Field, total int, fieldMap map[string][]interface{}) {
 	datatype := strings.TrimSpace(field.Type)
 	if datatype == "" { datatype = "list" }
diff --git a/src/model/definition.go b/src/model/definition.go
index e03f505f2e8b5d6763f2b11785b09497e8af489f..13501aa4981e03e6ccdb116351b9660185762d3e 100644
--- a/src/model/definition.go
+++ b/src/model/definition.go
@@ -16,6 +16,8 @@ type Field struct {
 	Range    string  `yaml:"range"`
 	Prefix   string  `yaml:"prefix"`
 	Postfix  string  `yaml:"postfix"`
+	Loop  int  `yaml:"loop"`
+	Loopfix  string  `yaml:"loopfix"`
 	Expect  string  `yaml:"expect"`
 	Fields   []Field `yaml:"fields,flow"`
 
diff --git a/xdoc/data.yaml b/xdoc/data.yaml
index fa9fa9c8c183afda9938d646637bc604d593a1e0..c3609dbd6202cf990764f98e0fb79bf4a9027246 100644
--- a/xdoc/data.yaml
+++ b/xdoc/data.yaml
@@ -7,9 +7,11 @@ fields:
   - name: field1
     note: 默认的列表类型，通过逗号隔成若干区段。
     type: list
-    range: 1-3,x-z:R,10.01-19.20:R,101,102
+    range: 1-3,x-z:R,10.01-19.20:3,101,102,103
     prefix:
     postfix:
+    loop: 3
+    loopfix: "|"
     expect: 1,2,3...,10,20,21,22...,25,27,29.30
   - name: field2
     note: 区间可以指定步长。