求解 为什么会奔溃
<script type="text/JavaScript">
var mynum =new Array(70,80,66,90,50,100,89);//定义数组mynum并赋值
var i=0;
while(i<mynum.length)
{
if(mynum[i]<60)
{
document.write("成绩"+mynum[i]+"不及格，不用循环了"+"<br>");
continue;
}
document.write("成绩:"+mynum[i]+"及格，继续循环"+"<br>");
i=i+1;
}
</script>
