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/** * 和PHP一样的时间戳格式化函数 * @param {string} format 格式 * @param {int} timestamp 要格式化的时间 默认为当前时间 * @return {string} 格式化的时间字符串 */ function date(format, timestamp){ var a, jsdate=((timestamp) ? new Date(timestamp*1000) : new Date()); var pad = function(n, c){ if((n = n + "").length < c){ return new Array(++c - n.length).join("0") + n; } else { return n; } }; var txt_weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]; var txt_ordin = {1:"st", 2:"nd", 3:"rd", 21:"st", 22:"nd", 23:"rd", 31:"st"}; var txt_months = ["", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]; var f = { // Day d: function(){return pad(f.j(), 2)}, D: function(){return f.l().substr(0,3)}, j: function(){return jsdate.getDate()}, l: function(){return txt_weekdays[f.w()]}, N: function(){return f.w() + 1}, S: function(){return txt_ordin[f.j()] ? txt_ordin[f.j()] : 'th'}, w: function(){return jsdate.getDay()}, z: function(){return (jsdate - new Date(jsdate.getFullYear() + "/1/1")) / 864e5 > > 0}, // Week W: function(){ var a = f.z(), b = 364 + f.L() - a; var nd2, nd = (new Date(jsdate.getFullYear() + "/1/1").getDay() || 7) - 1; if(b <= 2 && ((jsdate.getDay() || 7) - 1) <= 2 - b){ return 1; } else{ if(a <= 2 && nd > = 4 && a > = (6 - nd)){ nd2 = new Date(jsdate.getFullYear() - 1 + "/12/31"); return date("W", Math.round(nd2.getTime()/1000)); } else{ return (1 + (nd <= 3 ? ((a + nd) / 7) : (a - (7 - nd)) / 7) > > 0); } } }, // Month F: function(){return txt_months[f.n()]}, m: function(){return pad(f.n(), 2)}, M: function(){return f.F().substr(0,3)}, n: function(){return jsdate.getMonth() + 1}, t: function(){ var n; if( (n = jsdate.getMonth() + 1) == 2 ){ return 28 + f.L(); } else{ if( n & 1 && n < 8 || !(n & 1) && n > 7 ){ return 31; } else{ return 30; } } }, // Year L: function(){var y = f.Y();return (!(y & 3) && (y % 1e2 || !(y % 4e2))) ? 1 : 0}, //o not supported yet Y: function(){return jsdate.getFullYear()}, y: function(){return (jsdate.getFullYear() + "").slice(2)}, // Time a: function(){return jsdate.getHours() > 11 ? "pm" : "am"}, A: function(){return f.a().toUpperCase()}, B: function(){ // peter paul koch: var off = (jsdate.getTimezoneOffset() + 60)*60; var theSeconds = (jsdate.getHours() * 3600) + (jsdate.getMinutes() * 60) + jsdate.getSeconds() + off; var beat = Math.floor(theSeconds/86.4); if (beat > 1000) beat -= 1000; if (beat < 0) beat += 1000; if ((String(beat)).length == 1) beat = "00"+beat; if ((String(beat)).length == 2) beat = "0"+beat; return beat; }, g: function(){return jsdate.getHours() % 12 || 12}, G: function(){return jsdate.getHours()}, h: function(){return pad(f.g(), 2)}, H: function(){return pad(jsdate.getHours(), 2)}, i: function(){return pad(jsdate.getMinutes(), 2)}, s: function(){return pad(jsdate.getSeconds(), 2)}, //u not supported yet // Timezone //e not supported yet //I not supported yet O: function(){ var t = pad(Math.abs(jsdate.getTimezoneOffset()/60*100), 4); if (jsdate.getTimezoneOffset() > 0) t = "-" + t; else t = "+" + t; return t; }, P: function(){var O = f.O();return (O.substr(0, 3) + ":" + O.substr(3, 2))}, //T not supported yet //Z not supported yet // Full Date/Time c: function(){return f.Y() + "-" + f.m() + "-" + f.d() + "T" + f.h() + ":" + f.i() + ":" + f.s() + f.P()}, //r not supported yet U: function(){return Math.round(jsdate.getTime()/1000)} }; return format.replace(/[\\]?([a-zA-Z])/g, function(t, s){ if( t!=s ){ // escaped ret = s; } else if( f[s] ){ // a date function exists ret = f[s](); } else{ // nothing special ret = s; } return ret; }); }
/[\\]?([a-zA-Z])/g
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