JavaScript的

var myselect = document.getElementById("year"),year = new Date().getFullYear();
var gen = function(max){do{myselect.add(new Option(year++,max--),null);}while(max>0);}(5);

一点点更好的JavaScript功能：

var myselect = document.getElementById("year"),startYear = new Date().getFullYear()
    count = 5;

(function(select,val,count) {
  do {
    select.add(new Option(val++,count--),null);
  } while (count);
})(myselect,startYear,count);

jsFiddle,new jsFiddle