JavaScript 弹出框prompt例子

prompt用来让用户输入一个答案。

 

 

JavaScript代码

<script type="text/JavaScript">
 function judge() {
 var score;//分数
 var degree;//分数等级
 score = prompt("你的分数是多少？")
 if (score > 100){
 degree = '耍我？100分满！';
 }
 else{
 switch (parseInt(score / 10)) {
 case 0:
 case 1:
 case 2:
 case 3:
 case 4:
 case 5:
 degree = "恭喜你，又挂了！";
 break;
 case 6:
 degree = "勉强及格";
 break;
 case 7:
 degree = "凑合，凑合"
 break;
 case 8:
 degree = "8错，8错";
 break;
 case 9:
 case 10:
 degree = "高手高手，佩服佩服";
 }//end of switch
 }//end of else
 alert(degree);
 }
 </script>

HTML代码

<form action="#" method="post">
 <p>
 <button value="点击提交" onclick="judge()">点击提交</button>
 </p>
 <h2>&nbsp;</h2>
 <p>&nbsp;  </p>
 </form>