diff --git a/lib/zin/wg/thinkmulticolumn/js/v1.js b/lib/zin/wg/thinkmulticolumn/js/v1.js
new file mode 100644
index 0000000000..267e90579f
--- /dev/null
+++ b/lib/zin/wg/thinkmulticolumn/js/v1.js
@@ -0,0 +1,13 @@
+/**
+ * 处理输入框值变化。
+ * Handling input box value changes.
+ *
+ * @access public
+ * @return void
+ */
+window.changeRows = function()
+{
+    const value = $(this).val();
+    const intValue = value < 1 ? 1 : parseInt(value, 10);
+    $(this).val(intValue);
+}