1.使用npm 安装依赖包并再main.js中注册

//可以使用npm依赖，也可以直接下载particles.js
npm install particles.js --save
//main.js
import particles from 'particles.js'

Vue.config.productionTip = false
Vue.use(VueRouter)
Vue.use(particles)

new Vue({
  el: '#app',
  router,
  store,
  components: { App },
  template: '<App/>'
}).$mount('#app')

2. 新建particles.json

//页面效果啥主要就是改这里面的参数，自己查找particles.js中文手册吧
{
  "particles": {
    "number": {
      "value": 30,
      "density": {
        "enable": true,
        "value_area": 1000
      }
    },
    "color": {
      "value": "random"
    },
    "shape": {
      "type": "circle",
      "stroke": {
        "width": 0,
        "color": "#000000"
      },
      "polygon": {
        "nb_sides": 5
      },
      "image": {
        "src": "img/github.svg",
        "width": 100,
        "height": 100
      }
    },
    "opacity": {
      "value": 0.5,
      "random": false,
      "anim": {
        "enable": false,
        "speed": 1,
        "opacity_min": 0.1,
        "sync": false
      }
    },
    "size": {
      "value": 30,
      "random": true,
      "anim": {
        "enable": false,
        "speed": 3,
        "size_min": 1,
        "sync": false
      }
    },
    "line_linked": {
      "enable": false,
      "distance": 300,
      "color": "#ffffff",
      "opacity": 0.4,
      "width": 2
    },
    "move": {
      "enable": true,
      "speed": 1,
      "direction": "bottom",
      "random": false,
      "straight": false,
      "out_mode": "out",
      "bounce": false,
      "attract": {
        "enable": false,
        "rotateX": 600,
        "rotateY": 1200
      }
    }
  },
  "interactivity": {
    "detect_on": "canvas",
    "events": {
      "onhover": {
        "enable": false,
        "mode": "repulse"
      },
      "onclick": {
        "enable": true,
        "mode": "push"
      },
      "resize": true
    },
    "modes": {
      "grab": {
        "distance": 800,
        "line_linked": {
          "opacity": 1
        }
      },
      "bubble": {
        "distance": 800,
        "size": 80,
        "duration": 2,
        "opacity": 0.8,
        "speed": 3
      },
      "repulse": {
        "distance": 400,
        "duration": 0.4
      },
      "push": {
        "particles_nb": 4
      },
      "remove": {
        "particles_nb": 2
      }
    }
  },
  "retina_detect": true
}

3.vue组件中使用

<template>
    <div id="particles">
        <div class="login">
           <div></div>
        </div>
    </div>
</template>

<script>
import particlesJson from '../../assets/particles.json'
  export default {
      name:"login",
      data(){
          return {
            
          }
      },
      mounted(){
         particlesJS("particles",particlesJson);
      }
  }

</script>