npm install --save  ng-form-element

 // 导入组件库
import NgFormElement  from 'ng-form-element'
import 'ng-form-element/lib/ng-form-element.css'

// 注册组件库
Vue.use(NgFormElement) 

<div id="app"> 
    <ng-form-design  />
</div>

 <ng-form-design >
       <template slot="controlButton" >
           <el-button   type="text" size="medium"  @click="initDemo(1)">示例1</el-button>
           <el-button   type="text" size="medium"  @click="initDemo(2)">示例2</el-button>
           <el-button   type="text" size="medium"  @click="initDemo(3)">示例3</el-button>
       </template>
       <template  slot="formName">
           <span> vue-drag-formdesign 示例 </span>
       </template>
   </ng-form-design> 

   <template>
     <div id="app"> 
        <ng-form-build  :formTemplate="formTemplate" :models="models"/>
     </div>
   </template>
   <script>
   export default {
     data(){
       return {
         models: {} ,
         formTemplate: {}
       }
     },
     created() {
       this.formTemplate = require('./data/basic.json')
     }
   }
   </script>

<template>
  <div> 
    <el-input
      v-if="!preview"
      type="textarea"
      autosize
      placeholder="请输入图片地址"
      v-model="models[record.model]" :disabled="disabled">
    </el-input> 
     <el-image
        :style="record.options.style ? record.options.style : null"
        :src="models[record.model]"
        fit="scale-down"></el-image> 
  </div> 
</template>
<script>
  export default { 
    props: {    
      record: {//组件数据
        type: Object,
        required: true
      }, 
      models: {// 表单数组 
        type: Object,
        required: true
      }, 
      disabled: { // 是否禁用
        type: Boolean,
        default: false
      } , 
      preview: {// 是否当前是预览
        type: Boolean ,
        default: false
      } 
    },
    methods: { 
    }
  }
</script>

<template>
  <!-- 自定义组件的属性配置 -->  
  <el-form v-show="selectItem.key" size="mini" :disabled="disabled">
    <!-- TCustom   start-->
      <template v-if="selectItem.type == 'customT'"> 
            <!-- 开关的label -->
          <el-form-item   label="图片样式">
              <el-input type="textarea" placeholder="请输入" v-model="selectItem.options.style" /> 
          </el-form-item>
      </template> 
      <!-- TCustom  end -->
  </el-form> 
</template>
<script>
export default {
  props: {
      selectItem: { // 当前选择的组件
        type: Object,
        required: true
      },
      disabled: { // 是否禁用
        type: Boolean,
        default: false
      }
  } 
}
</script>

import CustomIndex from './custom.vue'
import CustomProperties from './properties.vue'
import icon from './icon.js' 

const customComponents = [
  {
    type: 'custom',
    label: '自定义组件1',
    component: CustomIndex ,
    properties: CustomProperties,
    icon: icon
  }
]
 
// 挂载动态表单组件
import FormDesign from 'ng-form-element' 
Vue.use(FormDesign , {components: customComponents})