/**
* 计算时间返回 yyyy-MM-dd h:m:s 格式的方法
* timestamp 时间戳
*/
timestampToTime(timestamp) {
// 计算年月日时分的函数
timestamp += "000";
var date = new Date(parseInt(timestamp));
var Y = date.getFullYear() + "-";
var M = date.getMonth() + 1 + "-";
var D = date.getDate() + " ";
var h = date.getHours() + ":";
var m = date.getMinutes() + ":";
var s = date.getSeconds();
M = parseInt(M) < 10 ? "0" + M : M;
D = parseInt(D) < 10 ? "0" + D : D;
h = parseInt(h) < 10 ? "0" + h : h;
m = parseInt(m) < 10 ? "0" + m : m;
s = parseInt(s) < 10 ? "0" + s : s;
// return Y + M + D + h + m + s;
return Y + M + D;
},