微信小程序循环 给当前的css样式

<repeat for="{{array}}" key="index" index="index" item="item">

<form report-submit="true" @submit="submit" @reset="reset">

<button form-type="submit" class="form_button">

<view class="nr_price {{state==index?'active-tag':''}}" @tap="select_date" data-key='{{index}}'>

{{item.price}}

</view>

</button>

</form>

</repeat>

 

 

.nr_price {

margin-top: 29rpx;

float: left;

width: 164rpx;

height: 80rpx;

background: #fff;

box-shadow: 0px 1px 6px 0px rgba(0, 0, 0, 0.15);

border-radius: 10rpx;

margin-right: 30rpx;

font-size: 30rpx;

font-family: PingFang-SC-Regular;

font-weight: 400;

color: #333333;

text-align: center;

line-height: 80rpx;

}

.active-tag {

color: #F83E4D;

}

 

 

 

state: '',

select_date(e) {

// this.setData({

// state: e.currentTarget.dataset.key,

// });

this.state = e.currentTarget.dataset.key

this.$apply();

}