wxml

<cover-view class='ico-l-1' bindtap = 'like'>

<cover-image wx:if="{{like==true}}"  src='../../imgs/like_t.png' class='ico-l-1-i'></cover-image>

<cover-image wx:if="{{like==false}}" src='../../imgs/like_v.png' class='ico-l-1-i'></cover-image>

</cover-view>

wxss

.ico-l-1 {

width: 70rpx;

height: 70rpx;

/* border: 1rpx solid #aaa; */

position: absolute;

left: 87vw;

top: 50vh;

}

.ico-l-1-i {

width: 100%;

height: 100%;

}

js

data:{like: false}

like: function() {

var that = this

if(that.data.like==true){

that.setData({

like: false

})

}else{

that.setData({

like: true

})

}

},