<van-field
        required
        clearable
        label="落箱时间"
        value="{{formData.dropBoxTime}}"
        border="{{false}}"
        readonly="{{true}}"
        input-align="right"
        title-width="5em"
        placeholder="请选择"
        data-title="落地时间"
        data-formname="formData.dropBoxTime"
        bind:click-input="popupShowFn"

      />

个别电脑突然无法调用到popupShowFn方法 或者bindtap 中的方法