[improvement] RadioGroup: jsx (#2618)

packages/radio-group/index.js

@@ -0,0 +1,20 @@
+import { use } from '../utils';
+
+const [sfc, bem] = use('radio-group');
+
+export default sfc({
+  props: {
+    value: null,
+    disabled: Boolean
+  },
+
+  watch: {
+    value(value) {
+      this.$emit('change', value);
+    }
+  },
+
+  render(h) {
+    return <div class={bem()}>{this.$slots.default}</div>;
+  }
+});