1.点击事件

<a data-current="{

{setting.current}}" bindtap="clickcurrent" style="color:{

{currentSelect.key == 'current'?mainColor:oldcolor}};"> <text>本期试用</text> <text class="activeline" style="background-color:{

{currentSelect.key == 'current'?mainColor:whiteColor}};"></text> </a> bindtap="clickcurrent"

2.style的使用

style="color:{
   {currentSelect.key == 'current'?mainColor:oldcolor}};"

3.传值

data-current="{
   {setting.current}}"

如何获取

传过来event ,然后写event.currentTarget.dataset.current

4.wx:if的动态使用

wx:if="{
   {currentSelect.key == 'current'}}"

5.循环的使用,默认item和index.

怎么样去修改变量名？

    
       {
   {idx}}: {
   {itemName.message}}
    

6.设置数据

var that = this        that.setData({            currentSelect: event.currentTarget.dataset.current        })