picker disabled无论true false都可以点击

<picker disabled=“{{item.province.length<0?‘true’:‘’}}” bindchange=“districtPickerChange” data-option-position=“{{index}}” value=“{{index}}” range=“{{district_list}}” range-key=“title”>

<text class=“job_area_item_district”>{{item.district.length>0?item.district:‘+’}}</text>

</picker>