jq随机生成一个单号

html:

  <div><span>单号:</span><span id="oddnum" style="color:#8700FF;font-weight: bold "></span></div>

jq:

$(function () {
    open()
})

function getCode(n) {
    var all = "azxcvbnmsdfghjklqwertyuiopZXCVBNMASDFGHJKLQWERTYUIOP0123456789";
    var b = "";
    for (var i = 0; i < n; i++) {
        var index = Math.floor(Math.random() * 62);
        b += all.charAt(index);

    }
    return b;
};

function open() {
    $("#oddnum").html(getCode(20));
}

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转载自www.cnblogs.com/hyc-go/p/11127450.html