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function dateFormat(fmt, date) {
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let ret;
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const opt = {
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"Y+": date.getFullYear().toString(), // 年
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"m+": (date.getMonth() + 1).toString(), // 月
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"d+": date.getDate().toString(), // 日
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"H+": date.getHours().toString(), // 时
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"M+": date.getMinutes().toString(), // 分
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"S+": date.getSeconds().toString() // 秒
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};
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for (let k in opt) {
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ret = new RegExp("(" + k + ")").exec(fmt);
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if (ret) {
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fmt = fmt.replace(ret[1], (ret[1].length == 1) ? (opt[k]) : (opt[k].padStart(ret[1].length, "0")))
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};
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};
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return fmt;
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}
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$(function () {
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var date = new Date()
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if (dateFormat("YYYY-mm-dd", date) == '2020-04-04') {
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console.log($('body').length)
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$('body').css({
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'-webkit-filter': 'grayscale(100%)'
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})
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}
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})
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