​

生活没有模板，只需心灯一盏。 如果笑能让你释然，那就开怀一笑；如果哭能让你减压，那就让泪水流下来。如果沉默是金，那就不用解释；如果放下能更好地前行，就别再扛着。

一、引入 Vant UI

1、通过 npm 安装

npm i @vant/weapp -S --production

​​

2、修改 app.json

将 app.json 中的 “style”: “v2” 去除，小程序的新版基础组件强行加上了许多样式，难以覆盖，不关闭将造成部分组件样式混乱。

3、构建 npm 包

打开微信开发者工具，点击 工具 -> 构建 npm，并勾选 使用 npm 模块 选项，构建完成后，即可引入组件。

二、页面与功能

1、页面实现

<!--index.wxml-->
<van-cell-group inset>
  <van-cell title="上联" required title-width="3.2em">
    <input class="weui-input" maxlength="10" placeholder="春联对歌民安国泰" bindinput="onChangeValue1" />
  </van-cell>
  <van-cell title="下联" required title-width="3.2em">
    <input class="weui-input" maxlength="10" placeholder="喜字成双花好月圆" bindinput="onChangeValue2" />
  </van-cell>
  <van-cell title="横批" required title-width="3.2em">
    <input class="weui-input" maxlength="10" placeholder="国泰民安" bindinput="onChangeValue3" />
  </van-cell>

  <van-cell required title-width="3.2em" title="字体" is-link value="{
    {font}}" bind:click="showFontsPopup" />
  <van-popup show="{
    { showFonts }}" bind:close="onFontClose" round position="bottom" custom-style="height: 40%">
    <van-picker show-toolbar title="春联字体" columns="{
    { fontsColumns }}" bind:cancel="onFontCancel" bind:confirm="onFontConfirm" default-index="{
    { 0 }}" />
  </van-popup>

  <van-cell required title-width="3.2em" title="方向" is-link value="{
    {direction}}" bind:click="showDirectPopup" />
  <van-popup show="{
    { showDirect }}" bind:close="onDirectClose" round position="bottom" custom-style="height: 40%">
    <van-picker show-toolbar title="字体方向" columns="{
    { directionColumns }}" bind:cancel="onDirectCancel" bind:confirm="onDirectConfirm" default-index="{
    { 0 }}" />
  </van-popup>

</van-cell-group>

<van-button disabled="{
    {disabled}}" color="linear-gradient(to right, #FF6034, #EE0A24)" block size="large" bind:click="onSubmit">{
  {submitText}}</van-button>

<van-button disabled="{
    {previewDisabled}}" color="linear-gradient(to right, #4bb0ff, #6149f6)" block size="large" bind:click="onPreviewImage">预览图片</van-button>

<van-grid column-num="3" border="{
    { false }}">
  <van-grid-item use-slot wx:for="{
    {localImgUrlArray}}" wx:key="index" bind:click="onImgTap" id="{
    {index}}" data-imgsrc="{
    {item}}">
    <image  style="width: 100%; height: 90px;" src="{
    {item}}" mode="aspectFit">