<script>
var level = prompt("请输入员工评级");
var salary = 5000;
switch (level) {
case "A":
salary = salary + 500;
console.log('哈哈哈' + salary);
break;
case "B":
salary = salary + 200;
console.log('不不不');
break;
case "C":
break;
case "D":
salary = salary - 200;
break;
case "E":
salary = salary - 500;
break;
default:
alert("请按套路出牌,输入A-E的值");
break;
}
console.log(salary);
</script>