JS基础，课堂作业，成绩练习

成绩练习

 <script>
     var name = prompt("请输入学生姓名：");
     var degree = parseInt(prompt("请输入学生成绩："));

     if(degree == 100) {

         alert("恭喜你：" + name + "，" + "满分通过" + "。");

     } else if(degree >= 80 && degree < 100) {

         alert(name + "，" + "你很优秀，继续保持！");

     } else if(degree >= 60 && degree < 80) {

         alert(name + "成绩良好！");

     } else if(degree >= 50 && degree < 60) {

         alert(name + "就差一点点，下次一定要至少及格！");

     } else {

         alert(name + "你是笨蛋么？");
     }
 </script>