js 时间格式化和时间戳

 formatMessageTime: function (time) { ???????var week = { ???????????"0": "星期日", ???????????"1": "星期一", ???????????"2": "星期二", ???????????"3": "星期三", ???????????"4": "星期四", ???????????"5": "星期五", ???????????"6": "星期六" ???????}; ???????var oneDay = 24 * 60 * 60 * 1000, ???????????oneWeek = 6 * 24 * 60 * 60 * 1000, ???????????oneYear = 365 * 24 * 60 * 60 * 1000; ???????// return function (time) { ???????if (!time) { ???????????return ‘‘; ???????} ???????if (typeof (time) === ‘string‘) { ???????????return time; ???????} ???????var sendTime = new Date(time), ???????????currentTime = new Date(); ???????var yesterdayTime = new Date(currentTime.getFullYear(), currentTime.getMonth(), currentTime.getDate()); ???????var minutes = sendTime.getMinutes(); ???????var hours = sendTime.getHours(); ???????minutes = minutes > 9 ? minutes : ‘0‘ + minutes; ???????hours = hours > 9 ? hours : ‘0‘ + hours; ???????var showSendTime = hours + ‘:‘ + minutes; ???????var showDate; ???????// 今天 ???????if (sendTime >= yesterdayTime) { ???????????return showSendTime; ???????} ???????// 昨天 ???????else if (sendTime >= yesterdayTime - oneDay) { ???????????showDate = ‘昨天‘; ???????} ???????// 一周内 ???????else if (sendTime >= yesterdayTime - oneWeek) { ???????????showDate = week[sendTime.getDay().toString()]; ???????} ???????// 今年内 ???????else if (sendTime.getFullYear() == currentTime.getFullYear()) { ???????????showDate = (sendTime.getMonth() + 1) + ‘/‘ + sendTime.getDate(); ???????} ???????// 本世纪 ???????else if (sendTime.getFullYear().toString().slice(0, 2) == currentTime.getFullYear().toString().slice(0, 2)) { ???????????showDate = sendTime.getFullYear().toString().slice(2) + ‘/‘ + (sendTime.getMonth() + 1) + ‘/‘ + sendTime.getDate(); ???????} ???????// ???????else { ???????????showDate = sendTime.getFullYear() + ‘/‘ + (sendTime.getMonth() + 1) + ‘/‘ + sendTime.getDate(); ???????} ???????return showDate + ‘ ‘ + showSendTime; ???????// }; ???}, ???formatTime: function (time) { ???????var d = new Date(time); ???????var year = d.getFullYear(); ???????var month = d.getMonth() + 1; ???????var day = d.getDate() < 10 ? ‘0‘ + d.getDate() : ‘‘ + d.getDate(); ???????var hour = d.getHours(); ???????var minutes = d.getMinutes(); ???????var seconds = d.getSeconds(); ???????// return year + ‘-‘ + month + ‘-‘ + day + ‘ ‘ + hour + ‘:‘ + minutes + ‘:‘ + seconds; ???????return hour + ‘:‘ + minutes; ???}, ???formatYMDhmsTime: function (time) { ???????var d = new Date(time); ???????var year = d.getFullYear(); ???????var month = d.getMonth() + 1; ???????var day = d.getDate() < 10 ? ‘0‘ + d.getDate() : ‘‘ + d.getDate(); ???????var hour = d.getHours(); ???????var minutes = d.getMinutes(); ???????var seconds = d.getSeconds(); ???????return year + ‘-‘ + month + ‘-‘ + day + ‘ ‘ + hour + ‘:‘ + minutes + ‘:‘ + seconds; ???????// return hour + ‘:‘ + minutes; ???}, ???formatYMDhmTime: function (time) { ???????var d = new Date(time); ???????var year = d.getFullYear(); ???????var month = d.getMonth() + 1; ???????var day = d.getDate() < 10 ? ‘0‘ + d.getDate() : ‘‘ + d.getDate(); ???????var hour = d.getHours(); ???????var minutes = d.getMinutes() <10 ? ‘0‘ + d.getMinutes() : ‘‘ + d.getMinutes(); ???????var seconds = d.getSeconds(); ???????return year + ‘-‘ + month + ‘-‘ + day + ‘ ‘ + hour + ‘:‘ + minutes; ???????// return hour + ‘:‘ + minutes; ???},