I did make it a plugin.

import fabric from 'fabric'
export default ({ Vue }) => {
  Vue.prototype.$fabric = fabric
}

then add a test.vue in components.

mounted () {
    var canvas = new this.$fabric.fabric.Canvas('canvas')
    var rect = new this.$fabric.fabric.Rect({
      left: 100,
      top: 150,
      fill: 'red',
      width: 200,
      height: 200
    })
    canvas.add(rect)
  }

but nothing happened.

Is anyone can tell how to use fabric.js ?
I did install fabric,and import fabric already.
but it only show blank page without error.