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function formatDate(date) {

console.log(date);

// date = new Date();

date = new Date(Date.parse(date.replace(/-/g, "/"))); //转换成Data();

console.log(date);

var y = date.getFullYear();

console.log(y);

var m = date.getMonth() + 1;

m = m < 10 ? '0' + m : m;

var d = date.getDate();

d = d < 10 ? ('0' + d) : d;

return y + '-' + m + '-' + d;

}

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Date.prototype.format = function (fmt) {

var o = {

"M+": this.getMonth() + 1, //月份

"d+": this.getDate(), //日

"h+": this.getHours(), //小时

"m+": this.getMinutes(), //分

"s+": this.getSeconds(), //秒

"q+": Math.floor((this.getMonth() + 3) / 3), //季度

"S": this.getMilliseconds() //毫秒

};

if (/(y+)/.test(fmt)) {

fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));

}

for (var k in o) {

if (new RegExp("(" + k + ")").test(fmt)) {

fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));

}

}

return fmt;

}

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new Date(addtime).format("yyyy-MM-dd");   //addtime这个是时间字符