思路是这么个思路。
通过ifelse控制input的focus，text触发则显示input同时focus。
// wxml
<view wx:for="{{lists}}">
<input bindblur="fnInputBlur" focus="{{lists[index].focus}}" selection-start="{{lists[index].sel_start}}" selection-end="{{lists[index].sel_end}}" data-idx="{{index}}" value="{{lists[index].number}}" type="number" class="skin" wx:if="{{lists[index].focus}}" />
<text bindtap="fnInputFocus" data-idx="{{index}}" class="skin" wx:else>{{lists[index].number}}</text>
</view> // js
fnInputFocus: function (e) {
var _dataset = e.currentTarget.dataset
var _idx = _dataset.idx;
this.setData({
[`lists[${_idx}].focus`]: !0,
});
},
fnInputBlur: function (e) {
var _dataset = e.currentTarget.dataset
var _idx = _dataset.idx;
this.setData({
[`lists[${_idx}].focus`]: !1,
});
},
// https://juejin.cn/post/7217994625343832122