vue+node实现图片上传+预览

先上效果图

上代码

html部分主要是借助了weui的样式

<template>
  <div>
    <myheader :title="'发布动态'">
      <i class="iconfont icon-fanhui1 left" slot="left" @click="goback"></i>
    </myheader>
    <div class="upload">
      <div v-if="userInfo._id">
        <!--图片上传-->
        <div class="weui-gallery" id="gallery">
          <span class="weui-gallery__img" id="galleryImg"></span>
          <div class="weui-gallery__opr">
            <a href="javascript:" class="weui-gallery__del">
              <i class="weui-icon-delete weui-icon_gallery-delete"></i>
            </a>
          </div>
        </div>
        <div class="weui-cells weui-cells_form">
          <div class="weui-cell">
            <div class="weui-cell__bd">
              <textarea class="weui-textarea" v-model="content" placeholder="你想说啥" rows="3"></textarea>
            </div>
          </div>
          <div class="weui-cell">
            <div class="weui-cell__bd">
              <div class="weui-uploader">
                <div class="weui-uploader__bd">
                  <ul class="weui-uploader__files" id="uploaderF