js时间相互转换：时间戳转为时间字符串（代码）

function formatDate(date, format) {
 if (!format) format = "yyyy-MM-dd HH:mm:ss";
 date = new Date(parseInt(date));
 var dict = {
 "yyyy": date.getFullYear(),
 "M": date.getMonth() + 1,
 "d": date.getDate(),
 "H": date.getHours(),
 "m": date.getMinutes(),
 "s": date.getSeconds(),
 "S": ("" + (date.getMilliseconds() + 1000)).substr(1),
 "MM": ("" + (date.getMonth() + 101)).substr(1),
 "dd": ("" + (date.getDate() + 100)).substr(1),
 "HH": ("" + (date.getHours() + 100)).substr(1),
 "mm": ("" + (date.getMinutes() + 100)).substr(1),
 "ss": ("" + (date.getSeconds() + 100)).substr(1)
 };
 return format.replace(/(y+|M+|d+|H+|s+|m+|S)/g,
 function(a) {
 return dict[a];
 });
}
//日期格式化
function dateformarter(value, rowData, rowIndex) {
 if (!value)
 return "";
 var date = new Date(value);
 var year = date.getFullYear().toString();
 var month = (date.getMonth() + 1);
 var day = date.getDate().toString();
 var hour = date.getHours().toString();
 var minutes = date.getMinutes().toString();
 var seconds = date.getSeconds().toString();
 if (month < 10) {
 month = "0" + month;
 }
 if (day < 10) {
 day = "0" + day;
 }
 if (hour < 10) {
 hour = "0" + hour;
 }
 if (minutes < 10) {
 minutes = "0" + minutes;
 }
 if (seconds < 10) {
 seconds = "0" + seconds;
 }
 if (year == "NaN" || month == "NaN") {
 return "";
 }
 return year + "-" + month + "-" + day + " " + hour + ":" + minutes + ":"
 + seconds;
}