vue--为网页添加动态响应背景

1、canvas-nest

　　这个应该是很常见的一个动态响应背景了，最后结果如下所示，是网上已有代码:在github上的开源代码

         

       方法一：通常使用js文件，如下。在html中可以直接导入js文件即可，在vue中也可以导入，但是这样导入的缺点是一旦导入，你所有页面的背景都将变成这个背景。

     

/**
 * Copyright (c) 2016 hustcc
 * License: MIT
 * Version: v1.0.1
 * GitHub: https://github.com/hustcc/canvas-nest.js
 **/
!
  function() {
    function n(n, e, t) {
      return n.getAttribute(e) || t
    }
    function e(n) {
      return document.getElementsByTagName(n)
    }
    function t() {
      var t = e("script"),
        o = t.length,
        i = t[o - 1];
      return {
        l: o,
        z: n(i, "zIndex", -1),
        o: n(i, "opacity", .5),
        c: n(i, "color", "0,0,0"),
        n: n(i, "count", 99)
      }
    }
    function o() {
      a = m.width = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth,
        c = m.height = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight
    }
    function i() {
      r.clearRect(0, 0, a, c);
      var n, e, t, o, m, l;
      s.forEach(function(i, x) {
        for (i.x += i.xa, i.y += i.ya, i.xa *= i.x > a || i.x < 0 ? -1 : 1, i.ya *= i.y > c || i.y < 0 ? -1 : 1, r.fillRect(i.x - .5, i.y - .5, 1, 1), e = x + 1; e < u.length; e++) n = u[e],
        null !== n.x && null !== n.y && (o = i.x - n.x, m = i.y - n.y, l = o * o + m * m, l < n.max && (n === y && l >= n.max / 2 && (i.x -= .03 * o, i.y -= .03 * m), t = (n.max - l) / n.max, r.beginPath(), r.lineWidth = t / 2, r.strokeStyle = "rgba(" + d.c + "," + (t + .2) + ")", r.moveTo(i.x, i.y), r.lineTo(n.x, n.y), r.stroke()))
      }),
        x(i)
    }
    var a, c, u, m = document.createElement("canvas"),
      d = t(),
      l = "c_n" + d.l,
      r = m.getContext("2d"),
      x = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame ||
        function(n) {
          window.setTimeout(n, 1e3 / 45)
        },
      w = Math.random,
      y = {
        x: null,
        y: null,
        max: 2e4
      };
    m.id = l,
      m.style.cssText = "position:fixed;top:0;left:0;z-index:" + d.z + ";opacity:" + d.o,
      e("body")[0].appendChild(m),
      o(),
      window.onresize = o,
      window.onmousemove = function(n) {
        n = n || window.event,
          y.x = n.clientX,
          y.y = n.clientY
      },
      window.onmouseout = function() {
        y.x = null,
          y.y = null
      };
    for (var s = [], f = 0; d.n > f; f++) {
      var h = w() * a,
        g = w() * c,
        v = 2 * w() - 1,
        p = 2 * w() - 1;
      s.push({
        x: h,
        y: g,
        xa: v,
        ya: p,
        max: 6e3
      })
    }
    u = s.concat([y]),
      setTimeout(function() {
          i()
        },
        100)
  } ();

canvas-nest.js