日期时间的工具函数 

  1 "日期时间的工具函数"
  2 
  3 function DateFormat(_Date, _fmt) {
  4     if (!_fmt)
  5         _fmt = "yyyy-MM-dd hh:mm:ss";
  6 
  7     var o = {
  8         "M+": _Date.getMonth() + 1, //月份 
  9         "d+": _Date.getDate(), //日 
 10         "h+": _Date.getHours(), //小时 
 11         "m+": _Date.getMinutes(), //分 
 12         "s+": _Date.getSeconds(), //秒 
 13         "q+": Math.floor((_Date.getMonth() + 3) / 3), //季度 
 14         "S": _Date.getMilliseconds() //毫秒 
 15     };
 16     if (/(y+)/.test(_fmt)) _fmt = _fmt.replace(RegExp.$1, (_Date.getFullYear() + "").substr(4 - RegExp.$1.length));
 17     for (var k in o)
 18         if (new RegExp("(" + k + ")").test(_fmt)) _fmt = _fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
 19     return _fmt;
 20 }
 21 
 22 
 23 ///! 时区
 24 const UTC_ZONE = {
 25     "UTC-0000": -0 * 3600 * 1000,
 26     "UTC-0100": -1 * 3600 * 1000,
 27     "UTC-0200": -2 * 3600 * 1000,
 28     "UTC-0300": -3 * 3600 * 1000,
 29     "UTC-0400": -4 * 3600 * 1000,
 30     "UTC-0500": -5 * 3600 * 1000,
 31     "UTC-0600": -6 * 3600 * 1000,
 32     "UTC-0700": -7 * 3600 * 1000,
 33     "UTC-0800": -8 * 3600 * 1000,
 34     "UTC-0900": -9 * 3600 * 1000,
 35     "UTC-1000": -10 * 3600 * 1000,
 36     "UTC-1100": -11 * 3600 * 1000,
 37     "UTC-1200": -12 * 3600 * 1000,
 38     "UTC+0000": 0 * 3600 * 1000,
 39     "UTC+0100": 1 * 3600 * 1000,
 40     "UTC+0200": 2 * 3600 * 1000,
 41     "UTC+0300": 3 * 3600 * 1000,
 42     "UTC+0400": 4 * 3600 * 1000,
 43     "UTC+0500": 5 * 3600 * 1000,
 44     "UTC+0600": 6 * 3600 * 1000,
 45     "UTC+0700": 7 * 3600 * 1000,
 46     "UTC+0800": 8 * 3600 * 1000,
 47     "UTC+0900": 9 * 3600 * 1000,
 48     "UTC+1000": 10 * 3600 * 1000,
 49     "UTC+1100": 11 * 3600 * 1000,
 50     "UTC+1200": 12 * 3600 * 1000
 51 }
 52 function datetime2zone_x(_date_time, _zone) {
 53 
 54     if (!_date_time)
 55         return "N/A";
 56 
 57     var office = UTC_ZONE[_zone];
 58     var temp_date = null;
 59     if (typeof _date_time == "string") {
 60 
 61         if (_date_time == "1970-01-01 00:00:00")
 62             return "N/A";
 63 
 64         if (_date_time == "0000-00-00 00:00:00")
 65             return "N/A";
 66 
 67         if (_date_time == "null")
 68             return "N/A";
 69 
 70         if (_date_time.indexOf("UTC") < 0)
 71             _date_time += " UTC+0000";
 72 
 73         temp_date = new Date(_date_time);
 74 
 75     }
 76     else
 77         temp_date = _date_time;
 78 
 79     function to_2_str(_value) {
 80         if (_value < 10)
 81             return "0" + _value;
 82         else
 83             return _value;
 84     }
 85     // console.log(_date_time);
 86     var temp = new Date(temp_date.getTime() + office);
 87     var date_str = temp.getUTCFullYear()
 88         + "-"
 89         + to_2_str(temp.getUTCMonth() + 1)
 90         + "-"
 91         + to_2_str(temp.getUTCDate())
 92         + " "
 93         + to_2_str(temp.getUTCHours())
 94         + ":"
 95         + to_2_str(temp.getUTCMinutes())
 96         + ":"
 97         + to_2_str(temp.getUTCSeconds())
 98         + " " + _zone;
 99     return date_str;
100 }
101 function datetime2zone_0(_date_time) {
102 
103     var temp_date = null;
104     if (typeof _date_time == "string") {
105         if (_date_time.indexOf("UTC") < 0)
106             return _date_time;
107         temp_date = new Date(_date_time);
108     }
109     else
110         temp_date = _date_time;
111 
112     function to_2_str(_value) {
113         if (_value < 10)
114             return "0" + _value;
115         else
116             return _value;
117     }
118     temp_date = new Date(temp_date.getTime());
119 
120     var date_str = temp_date.getUTCFullYear()
121         + "-"
122         + to_2_str(temp_date.getUTCMonth() + 1)
123         + "-"
124         + to_2_str(temp_date.getUTCDate())
125         + " "
126         + to_2_str(temp_date.getUTCHours())
127         + ":"
128         + to_2_str(temp_date.getUTCMinutes())
129         + ":"
130         + to_2_str(temp_date.getUTCSeconds());
131     return date_str;
132 }
133 exports.DateFormat = DateFormat;
134 exports.UTC_ZONE = UTC_ZONE;
135 exports.datetime2zone_x = datetime2zone_x;
136 exports.datetime2zone_0 = datetime2zone_0;

 

posted on 2021-07-13 15:13  赤瞳斩  阅读(83)  评论(0)    收藏  举报