diff --git a/compare.go b/compare.go
new file mode 100644
index 0000000..7948750
--- /dev/null
+++ b/compare.go
@@ -0,0 +1,37 @@
+package gjson
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+func Compare(a, b JSONValue) (int, error) {
+	if a == nil || b == nil {
+		return 0, errors.New("cannot compare nil values")
+	}
+
+	typeA := reflect.TypeOf(a)
+	typeB := reflect.TypeOf(b)
+
+	if typeA != typeB {
+		return 0, fmt.Errorf("cannot compare different types: %s vs %s", typeA, typeB)
+	}
+
+	switch vA := a.(type) {
+	case *JSONString:
+		vB := b.(*JSONString)
+		return strings.Compare(vA.value, vB.value), nil
+	case *JSONNumber:
+		vB := b.(*JSONNumber)
+		if vA.value < vB.value {
+			return -1, nil
+		} else if vA.value > vB.value {
+			return 1, nil
+		}
+		return 0, nil  // 当两个数相等时返回0
+	}
+	
+	return 0, nil  // 默认返回，理论上不会执行到这里
+}
\ No newline at end of file