diff --git a/js/view.js b/js/view.js
index 0f58aff..bd965c8 100644
--- a/js/view.js
+++ b/js/view.js
@@ -1,7 +1,7 @@
 (function () {
-	var index = getQueryString('i');
-	if (index == '') {
-		message.alert('发生错误', '缺少参数，请检查URL是否正确', function () {
+	var index = window.parseInt(getQueryString('i'));
+	if (window.isNaN(index)) {
+		message.alert('发生错误', '缺少参数或参数类型不正确，请检查URL是否正确', function () {
 			window.location.replace('/');
 		});
 		return;