function timestampToTime(timestamp) {
    var date = new Date(timestamp);
    var Y = date.getFullYear();
    var M = (date.getMonth()+1<10?'0'+(date.getMonth()+1):date.getMonth()+1);
    var D = (date.getDate()<10 ? '0'+date.getDate():date.getDate());
    return Y+"年"+M+"月"+D+"日";
}