fix bug

apps/classroom/Tpl/default/Index/search_w3g.html

@@ -399,7 +399,7 @@
                 let that = this
                 $.ajax({
                     type: "GET",
-                    url: "{:U('exams/Index/paper')}" + "&api=1&search=" + that.keyword,
+                    url: "{:U('exams/Index/paper')}" + "&api=3&search=" + that.keyword,
                     dataType: "json",
                     success: function (res) {
                         if (res.status == 1) {