微信小程序双向数据绑定

"van-field": "@vant/weapp/field/index"

1. <van-cell-group>
2. <van-field
3.     model:value="{{ value }}"
4.     placeholder="请输入用户名"
5.     border="{{ false }}"
6. />
7. </van-cell-group>
8. 
9. <van-cell-group>
10. <van-field
11.     model:value="{{ value }}"
12.     placeholder="请输入用户名"
13.     border="{{ false }}"
14. />
15. </van-cell-group>

1. Page({
2. data: {
3. value: '',
4.   },
5. });