如何实现标题打字效果的代码如下

   

<div id="chakhsu">
</div>
< script >
var chakhsu = function(r) {
    function t() {
        return b[Math.floor(Math.random() * b.length)]
    }
    function e() {
        return String.fromCharCode(94 * Math.random() + 33)
    }
    function n(r) {
        for (var n = document.createDocumentFragment(), i = 0; r > i; i++) {
            var l = document.createElement("span");
            l.textContent = e(),
            l.style.color = t(),
            n.appendChild(l)
        }
        return n
    }
    function i() {
        var t = o[c.skillI];
        c.step ? c.step--:(c.step = g, c.prefixP < l.length ? (c.prefixP >= 0 && (c.text += l[c.prefixP]), c.prefixP++) : "forward" === c.direction ? c.skillP < t.length ? (c.text += t[c.skillP], c.skillP++) : c.delay ? c.delay--:(c.direction = "backward", c.delay = a) : c.skillP > 0 ? (c.text = c.text.slice(0, -1), c.skillP--) : (c.skillI = (c.skillI + 1) % o.length, c.direction = "forward")),
        r.textContent = c.text,
        r.appendChild(n(c.prefixP < l.length ? Math.min(s, s + c.prefixP) : Math.min(s, t.length - c.skillP))),
        setTimeout(i, d)
    }
    /*以下内容自定义修改*/
    var l = "你指尖躍動的電光",
    o = ["是我此生不變的信仰", ].map(function(r) {
        return r + ""
    }),
    a = 2,
    g = 1,
    s = 5,
    d = 75,
    b = ["rgb(110,64,170)", "rgb(150,61,179)", "rgb(191,60,175)", "rgb(228,65,157)", "rgb(254,75,131)", "rgb(255,94,99)", "rgb(255,120,71)", "rgb(251,150,51)", "rgb(226,183,47)", "rgb(198,214,60)", "rgb(175,240,91)", "rgb(127,246,88)", "rgb(82,246,103)", "rgb(48,239,130)", "rgb(29,223,163)", "rgb(26,199,194)", "rgb(35,171,216)", "rgb(54,140,225)", "rgb(76,110,219)", "rgb(96,84,200)"],
    c = {
        text: "",
        prefixP: -s,
        skillI: 0,
        skillP: 0,
        direction: "forward",
        delay: a,
        step: g
    };
    i()
};
chakhsu(document.getElementById('chakhsu')); < /script>


Last modification：March 17th, 2018 at 01:42 am
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