'fix'

src/modules/teach-tool/examination-manager/AddExam.less

 .examPage{
+    padding-bottom: 50px;
     .form{
         margin-top: 12px;
         width: 1000px;
@@ -30,4 +31,20 @@
             background-color: transparent;
         }
     }
+    .footer {
+        position: fixed;
+        bottom: 0;
+        height: 58px;
+        width: 100%;
+        display: flex;
+        align-items: center;
+        justify-content: flex-end;
+        padding-right: 252px;
+        background: #fff;
+        border-top: 1px solid #E8E8E8;
+        z-index: 9999;
+        .ant-btn {
+          margin-left: 10px;
+        }
+      }
 }
\ No newline at end of file