刷新Vue组件中的Konva形状状态

import Vue from 'vue';
import Konva from 'konva';

data() {
  return {
    rectWidth: 100,
    rectHeight: 50,
    rectColor: 'red',
  };
},

<template>
  <div>
    <v-stage :config="{ width: 500, height: 300 }">
      <v-layer>
        <!-- 在这里添加Konva形状 -->
        <v-rect :config="{ width: rectWidth, height: rectHeight, fill: rectColor }"></v-rect>
      </v-layer>
    </v-stage>
  </div>
</template>

methods: {
  updateShape() {
    this.rectWidth = 200;
    this.rectHeight = 100;
    this.rectColor = 'blue';
  },
},

<template>
  <div>
    <button @click="updateShape">更新形状</button>
    <!-- ... -->
  </div>
</template>