修复 一键复制兑换码 时间范围限制错误

src/pages/exchangecode/add/add.js

@@ -183,6 +183,13 @@ export default class acclist extends React.Component {
               //数据模型不可少
               date_time: [req.begin_time, req.end_time]
             }
+            sessionStorage.setItem(
+              'plan_item',
+              JSON.stringify({
+                begin_time: req.begin_time,
+                end_time: req.end_time
+              })
+            )
             this.setState({
               checkedList: req.bind_object,
               model: model,