个回答

• qq_巅峰强子_0

  2015-12-15 21:03:09

  var arr =['*','##',"***","&&","****","##*"];
  arr[7] = "**";
  alert(arr.length);
  document.write(arr[0]+"<br>");
  document.write(arr[7]+"<br>");
  document.write(arr[2]+"<br>");
  document.write(arr[4]+"<br>");

  0