// 获取当前时间
getNowTime: function () {
    let dateTime;
    let yy = new Date().getFullYear();
    let MM = new Date().getMonth() + 1;
    let dd = new Date().getDate();
    let hh = new Date().getHours();
    let mm = new Date().getMinutes() < 10 ? '0' + new Date().getMinutes():new Date().getMinutes();
    let ss = new Date().getSeconds() < 10 ? '0' + new Date().getSeconds():new Date().getSeconds();
    dateTime = yy + '-' + MM + '-' + dd + ' ' + hh + ':' + mm + ':' + ss;
    console.log(dateTime);
    return dateTime;
},