拿掉查看权限，设置权限仅设置选定角色，增加返回

src/views/system_manage/newAuthManage.vue

@@ -9,7 +9,7 @@
                     </el-option>
                 </el-select> -->
             </div>
-            <el-button style="margin-left:auto;marginRight:50px;width:140px;" @click="saveAuth" v-if="!isLook">取消
+            <el-button style="margin-left:auto;marginRight:50px;width:140px;" @click="$router.back()" v-if="!isLook">取消
             </el-button>
             <el-button type="primary" style="marginRight:50px;width:140px;" @click="saveAuth" v-if="!isLook">确定
             </el-button>