新增h函数

src/core/h.js

@@ -0,0 +1,19 @@
+BI.Fragment = function () {
+};
+
+BI.h = function (type, props, children) {
+    if (type === BI.Fragment) {
+        return children;
+    }
+    if (BI.isFunction(type)) {
+        type = type.xtype;
+    }
+    if (type === "el") {
+        return BI.extend({
+            el: children[0]
+        }, props);
+    }
+    return BI.extend({
+        items: children
+    }, props);
+};