微信小程序中如何完成假数据评论的技巧（完整代码）

<view>
<button bindtap='showTalks'>查看评论</button>
</view>
<!-- 整个评论区 -->
<view class='talks-layer' animation='{{talksAnimationData}}'>
<!-- 主要作用是点击后隐藏评论区 -->
<view class='layer-white-space' bindtap='hideTalks'>
</view>
<!-- 评论区 -->
<view class='talks' bindtouchstart='touchStart' bindtouchmove='touchMove'>
<!-- 评论头部 -->
<view class='talk-header'>
<view class='talk-count'>{{talks.length}} 条评论</view>
<image src='../../../images/close.png' class='talk-close' bindtap='hideTalks'></image>
</view>
<!-- 评论体 -->
<scroll-view class='talk-body' scroll-y="true" bindscrolltolower="onScrollLoad">
<view class='talk-item' wx:for="{{talks}}" wx:key="*this">
<view class='talk-item-left'>
<image class='talk-item-face' src='{{item.avatarUrl}}'></image>
</view>
<view class='talk-item-right'>
<view class='right-left'>
<text class='talk-item-nickname'>{{item.nickName}}</text>
<text class='talk-item-time'>{{item.talkTime}}</text>
</view>
<text class='talk-item-content'>{{item.content}}</text>
</view>
</view>
</scroll-view>
<!-- 评论底部 -->
<view class="cf-bg" catchtap="cemojiCfBg" style="display:{{cfBg ? 'block' : 'none'}}"></view>
<view class=" {{isShow ?'footer_boxmovein' : 'talk-footer'}}">
<view class='footer_box'>
<view class="emoji iconfont icon-emoji" catchtap="emojiShowHide"></view>
<input class='talk-input' type='text' value='{{inputValue}}' bindblur="bindInputBlur" placeholder='有爱评论，说点儿好听的~'></input>
<button class='fabu-input' bindtap='faBu'>发布</button>
</view>
<view wx:if='{{isShow}}' class="emoji-box {{isShow ? 'emoji-move-in' : 'emoji-move-out'}} {{isLoad ? 'no-emoji-move' : ''}}">
<scroll-view scroll-y="true" bindscroll="emojiScroll" style="height:200px">
<block wx:for="{{emojis}}" wx:for-item="e" wx:key="">
<view class="emoji-cell">
<image class="touch-active" bindtap="emojiChoose" src="http://soupu.oss-cn-shanghai.aliyuncs.com/emoji/{{e.emoji}}.png" data-emoji="{{e.char}}" data-oxf="{{e.emoji}}"></image>
</view>
</block>
</scroll-view>
</view>
</view>
</view>
</view>

.wxss

page {
height: 100%;
overflow: hidden;
}
/* 框架 */
.talks-layer {
position: absolute;
bottom: -100%;
height: 0;
width: 100%;
overflow: hidden;
/* background-color: blue; */
}
.layer-white-space {
height: 100%;
width: 100%;
background-color: #ccc;
opacity: 0.5;
/* background-color: green; */
}
.talks {
position: absolute;
height: 900rpx;
width: 100%;
bottom: 0rpx;
background-color: #2f2d2e;
border-top-left-radius: 3%;
border-top-right-radius: 3%;
/* background-color: red; */
}
.talk-header {
width: 100%;
height: 70rpx;
padding-top: 30rpx;
text-align: center;
}
.talk-body {
height: 700rpx;
}
.talk-footer {
position: absolute;
bottom: 0rpx;
width: 100%;
height: 100rpx;
background-color: #151515;
display: flex;
justify-content: space-between;
align-items: center;
padding: 0 30rpx;
box-sizing: border-box;
}
.footer_boxmovein{
position: absolute;
bottom: 400rpx;
width: 100%;
height: 100rpx;
z-index:1000;
background-color: #151515;
display: flex;
justify-content: space-between;
align-items: center;
padding: 0 30rpx;
box-sizing: border-box;
transition:all 0.6s;
}
.footer_box {
display: flex;
justify-content: space-between;
align-items: center;
width: 100%;
}
/* 顶部元素 */
.talk-count {
font-size: 26rpx;
height: 40rpx;
color: #6b696a;
}
.talk-close {
position: absolute;
top: 30rpx;
right: 40rpx;
width: 40rpx;
height: 40rpx;
}
/* 中部元素 */
.talk-item {
display: flex;
flex-direction: row;
align-items: flex-start;
width: 100%;
color: white;
}
.talk-item-left {
display: flex;
flex-direction: row;
margin: 20rpx 30rpx;
} 
.talk-item-face {
width: 80rpx;
height: 80rpx;
border-radius: 50%;
}
.talk-item-right {
width: 100%;
border-bottom: solid 1rpx #6a6869;
margin-right: 30rpx;
/* margin-bottom: 30rpx; */
padding-bottom: 20rpx;
}
.right-left {
display: flex;
justify-content: space-between;
align-items: center;
margin: 10px 0;
} 
.talk-item-nickname {
font-size: 28rpx;
color: #aaa8a9;
}
.talk-item-time {
font-size: 24rpx;
color: #6a6869;
}
.talk-item-content {
display: block;
font-size: 30rpx;
margin-right: 30rpx;
width: 92%;
white-space: pre-line;
word-break: break-all;
word-wrap: break-word；;
}
/* 底部元素 */
.talk-input {
width: 100%;
font-size: 30rpx;
padding: 20rpx 0;
padding-left: 30rpx;
/* box-sizing: border-box; */
color: white;
border-top-left-radius: 5%;
border-top-right-radius: 5%;
}
.fabu-input {
background: red;
font-size: 26rpx;
color: #fff;
width: 127rpx;
height: 60rpx;
line-height: 60rpx;
text-align: center;
border-radius: 30rpx;
padding: 0;
}
.emoji {
background-color: #fff;
width: 30px;
height: 30px;
text-align: center;
padding-top: 2px;
box-sizing: border-box;
font-size: 20px;
}
.emoji-box {
position: absolute;
bottom:-390rpx;
left:0rpx;
height: 200px;
padding: 5px 16rpx;
box-sizing: border-box;
background:#000;
} 
.emoji-cell {
width: 9.09%;
height: 33px;
display: inline-block;
} 
.emoji-cell image {
width: 23px;
height: 23px;
padding: 5px;
border-radius: 3px;
}
.emoji-move-in {
-webkit-animation: emoji-move-in 0.3s forwards;
animation: emoji-move-in 0.3s forwards;
}
.emoji-move-out {
-webkit-animation: emoji-move-out 0.3s forwards;
animation: emoji-move-out 0.3s forwards;
} 
.no-emoji-move {
-webkit-animation: none;
animation: none;
} 
@-webkit-keyframes emoji-move-in {
0% {
margin-bottom: -200px;
}
100% {
margin-bottom: 0;
}
}
@keyframes emoji-move-in {
0% {
margin-bottom: -200px;
}
100% {
margin-bottom: 0;
}
}
@-webkit-keyframes emoji-move-out {
0% {
margin-bottom: 0;
}
100% {
margin-bottom: -200px;
}
}
@keyframes emoji-move-out {
0% {
margin-bottom: 0;
}
100% {
margin-bottom: -200px;
}
}
@-webkit-keyframes pd-left-move {
0% {
padding-left: 5px;
}
100% {
padding-left: 15px;
}
}
@keyframes pd-left-move {
0% {
padding-left: 5px;
} 
100% {
padding-left: 15px;
}
}
.cf-bg {
position: fixed;
top: 0;
left: 0;
bottom: 0;
right: 0;
background-color: transparent;
z-index: 99;
}