为什么会没有结果?
<!DOCTYPE HTML>
<html>
<head>
<script>
var abb=new Array(80,90,95,85,61,50,60,70);
var i=0;
for(i=1;i<=7;i++){
if(var[i]<60){
document.write("成绩不及格"+abb[i]+"<br />");
break;
}
document.write("成绩为"+abb[i]+"<br />");
}
</script>
</head>
<body>
</body>
</html>