JS计算距当前时间的时间差

/** * JS获取距当前时间差 * ?* @param int time 时间戳格式 * */function get_time_diff(time) { ???var diff = ‘‘; ???var time_diff = new Date().getTime() - time; ??//时间差的毫秒数 ???????????????//计算出相差天数 ?????var days = Math.floor(time_diff / (24 * 3600 * 1000)); ???if (days > 0) { ???????diff += days + ‘天‘; ???} ???//计算出小时数 ?????var leave1 = time_diff % ( 24 * 3600 * 1000); ????var hours = Math.floor(leave1 / (3600 * 1000)); ???if (hours > 0) { ???????diff += hours + ‘小时‘; ???} else { ???????if (diff !== ‘‘) { ???????????diff += hours + ‘小时‘; ???????} ???} ???//计算相差分钟数 ?????var leave2 =leave1 % (3600 * 1000); ???var minutes = Math.floor(leave2 / (60 * 1000)); ???if (minutes > 0) { ???????diff += minutes + ‘分‘; ???} else { ???????if (diff !== ‘‘) { ???????????diff += minutes + ‘分‘; ???????} ???} ???//计算相差秒数 ?????var leave3 = leave2%(60*1000); ???var seconds = Math.round(leave3/1000); ???if (seconds > 0) { ???????diff += seconds + ‘秒‘; ???} else { ???????if (diff !== ‘‘) { ???????????diff += seconds + ‘秒‘; ???????} ???} ???????return diff;}