排序准则

<script type="text/javascript">//<![CDATA[function mySort(item1, item2){  if (item1 >  item2) return  1;  if (item1 <  item2) return -1;  if (item1 == item2) return  0;}myArray = new Array(3, 6, 8, 1, 2);document.write("myArray before being sorted:<br>");for (i=0; i<myArray.length; i++){  document.write("myArray[", i, "] : ", myArray[i], "<br>");}myArray.sort(mySort);document.write("<br>myArray after being sorted:<br>");for (i=0; i<myArray.length; i++){  document.write("myArray[", i, "] : ", myArray[i], "<br>");}//]]></script>

sort调用mySort定义的准则