diff --git a/rxlib/src/main/java/org/rx/bean/DataRange.java b/rxlib/src/main/java/org/rx/bean/DataRange.java
index f92aa7b2..27393df6 100644
--- a/rxlib/src/main/java/org/rx/bean/DataRange.java
+++ b/rxlib/src/main/java/org/rx/bean/DataRange.java
@@ -3,6 +3,8 @@
 import lombok.Data;
 import lombok.NoArgsConstructor;
 import lombok.NonNull;
+import org.rx.core.Reflects;
+import org.rx.core.Strings;
 
 import java.io.Serializable;
 
@@ -12,6 +14,12 @@
 @NoArgsConstructor
 public class DataRange<T extends Comparable<T>> implements Serializable {
     private static final long serialVersionUID = 2698228026798507997L;
+
+    public static <T extends Comparable<T>> DataRange<T> of(String expr, Class<T> type) {
+        String[] vals = Strings.split(expr, "-", 2);
+        return new DataRange<>(Reflects.changeType(vals[0], type), Reflects.changeType(vals[1], type));
+    }
+
     public T start;
     public T end;