增加登录失败统计

src/features/Login/Login.vue

@@ -280,12 +280,19 @@ export default {
           await this.checkExamInProgress();
           window._hmt.push(["_trackEvent", "登录页面", "登录成功"]);
         } catch (error) {
+          window._hmt.push([
+            "_trackEvent",
+            "登录页面",
+            "登录失败",
+            "getStudentInfoBySession失败"
+          ]);
           this.$Message.error({
             content: "获取学生信息失败，请重试！",
             duration: 30
           });
         }
       } else {
+        window._hmt.push(["_trackEvent", "登录页面", "登录失败"]);
         this.errorInfo = data.desc;
       }
     },