微信小程序 JS动态修改样式的实现方法

<view > <view class="cont" style="background:{{background}};">属性改变</view> <button bindtap="tryDriver">测试</button></view>

.cont{ height: 150rpx; line-height: 150rpx; text-align: center; border: 1px solid #89dcf8; margin-bottom:112rpx; margin:13rpx;}

Page({ data: {}, tryDriver: function() { this.setData({  background: "#89dcf8" }) }})

<view > <view class="cont" style="background:{{background}};color:{{color}};height:{{height}}">属性改变</view> <button bindtap="tryDriver">测试</button></view>

Page({ data: {}, tryDriver: function() { this.setData({  background: "#89dcf8",  color:'#ffffff',  height:"322rpx" }) }})