窗口句柄的问题

即然这样那就这样
var url = ["",""];
var nwins=["win1","win2"];
var lastWin = "";
for(var i=0,l=10;i<l;i++){  window.open(url[i%2],(lastWin = nwins[i%2]));
  try{
    eval(lastWin+".close();");
  }
  catch(e){};
  lastWin = nwins[i%2];
}自己去试试,改一改,我没得那十个元素的url组...