本文主要是介绍网站动态背景粒子线条跟随鼠标移动，吸附鼠标效果代码，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
说明
作者：姜成SEO
原文链接：https://blog.csdn.net/qq_40223005/article/details/80810695
效果图
完整代码
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<html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>粒子线条-线条吸附鼠标动</title>
</head><body><script>//rgb颜色随机function rgb() {var r = Math.floor(Math.random()*256);var g = Math.floor(Math.random()*256);var b = Math.floor(Math.random()*256);var rgb = '('+r+','+g+','+b+')';console.log("当前颜色：" + rgb);return rgb;}// 16进制随机颜色function randomColor() {return "#" + Math.floor(Math.random() * 16777215).toString(16);}!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()))t = (n.max - l) / n.max, r.beginPath(), r.lineWidth = t / 2, r.strokeStyle = randomColor(), 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)}();</script>
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