将中国标准时间转换成标准格式的代码

function formatTen(num) { 
return num > 9 ? (num + "") : ("0" + num); 
} 

function formatDate(date) { 
var year = date.getFullYear(); 
var month = date.getMonth() + 1; 
var day = date.getDate(); 
var hour = date.getHours(); 
var minute = date.getMinutes(); 
var second = date.getSeconds(); 
return year + "-" + formatTen(month) + "-" + formatTen(day); 
}