微信小程序实现漂亮的弹窗效果

<view class="mask" catchtouchmove="preventTouchMove" wx:if="{{showModal}}"></view>

<view class="modalDlg" wx:if="{{showModal}}">
 <image src="/figures/logo-smile.png"/>
 <text>欢迎来到模态对话框~</text>
 <button bindtap="go">点我可以关掉对话框</button>
</view>

<button bindtap="submit">点我弹窗</button>

.mask{
 width: 100%;
 height: 100%;
 position: fixed;
 : 0;
 left: 0;
 background: #000;
 z-index: 9000;
 opacity: 0.7;
}

.modalDlg{
 width: 580rpx;
 height: 620rpx;
 position: fixed;
 : 50%;
 left: 0;
 z-index: 9999;
 margin: -370rpx 85rpx;
 background-color: #fff;
 border-radius: 36rpx;
 display: flex;
 flex-direction: column;
 align-items: center;
}

Page({

 data: {
  showModal: false
 },

 submit: function() {
  this.setData({
  showModal: true
  })
 },

 preventTouchMove: function() {

 },


 go: function() { 
  this.setData({
  showModal: false
  })
 }

})