怎么运行不出来,判断分数。
<script type="text/javascript">
var score=80;
if(score>=60&&score<=70){document.write("恭喜及格了")};
else if(score>=80){document.write("优秀")};
else{document.write("无")};
</script>
<script type="text/javascript">
var score=80;
if(score>=60&&score<=70){document.write("恭喜及格了")};
else if(score>=80){document.write("优秀")};
else{document.write("无")};
</script>
2016-05-15
举报