uniappform表单设计

根据提供的引用内容，我了解到uniappform是一个基于Vue.js和Element UI的表单设计器，可以帮助开发者快速构建表单页面。以下是uniappform表单设计的介绍和演示：

1. uniappform表单设计介绍

uniappform表单设计器是一个基于Vue.js和Element UI的表单设计器，可以帮助开发者快速构建表单页面。它提供了丰富的表单组件和布局方式，支持拖拽式设计和实时预览，同时也支持自定义组件和自定义样式。

2. uniappform表单设计演示

以下是一个简单的uniappform表单设计演示，包括添加表单组件、设置表单属性和实时预览：

<template>
  <div class="form-designer">
    <div class="form-designer-sidebar">
      <div class="form-designer-sidebar-item" v-for="component in components" :key="component.type" :draggable="true" :data-type="component.type" @dragstart="onDragStart">
        {{ component.label }}
      </div>
    </div>
    <div class="form-designer-content">
      <div class="form-designer-toolbar">
        <el-button type="primary" @click="onPreview">预览</el-button>
      </div>
      <div class="form-designer-canvas" ref="canvas">
        <div class="form-designer-canvas-item" v-for="(item, index) in form.items" :key="item.id" :style="{ top: item.top + 'px', left: item.left + 'px' }">
          <component :is="item.type" :model="item.model" :disabled="item.disabled" :readonly="item.readonly" :options="item.options" @input="onInput(index, $event)" />
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { cloneDeep } from 'lodash'
import { components } from './components'

export default {
  name: 'FormDesigner',
  components: components,
  data() {
    return {
      form: {
        items: []
      },
      components: components
    }
  },
  methods: {
    onDragStart(event) {
      event.dataTransfer.setData('text/plain', event.target.dataset.type)
    },
    onDrop(event) {
      const type = event.dataTransfer.getData('text/plain')
      const rect = this.$refs.canvas.getBoundingClientRect()
      const x = event.clientX - rect.left
      const y = event.clientY - rect.top
      this.form.items.push({
        id: Date.now(),
        type: type,
        top: y,
        left: x,
        model: '',
        disabled: false,
        readonly: false,
        options: []
      })
    },
    onInput(index, value) {
      this.form.items[index].model = value
    },
    onPreview() {
      const form = cloneDeep(this.form)
      form.items.forEach(item => {
        delete item.id
        delete item.disabled
        delete item.readonly
        delete item.options
      })
      this.$emit('preview', form)
    }
  }
}
</script>

<style>
.form-designer {
  display: flex;
  height: 100%;
}

.form-designer-sidebar {
  width: 200px;
  height: 100%;
  background-color: #f0f0f0;
  overflow-y: auto;
}

.form-designer-sidebar-item {
  padding: 10px;
  cursor: move;
}

.form-designer-content {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.form-designer-toolbar {
  padding: 10px;
}

.form-designer-canvas {
  flex: 1;
  position: relative;
  background-color: #fff;
  overflow: auto;
}

.form-designer-canvas-item {
  position: absolute;
}
</style>

3. 相关问题