首页用jsp wed写一个阶级计算器

用jsp wed写一个阶级计算器

时间: 2024-09-28 09:09:46 浏览: 37

在JSP（JavaServer Pages）中创建一个简单的班级计算器，你可以设计一个网页界面，用户可以输入学生的分数，然后计算平均分、最高分和最低分。以下是一个基本步骤： 1. **HTML部分**: ```html <!DOCTYPE html> <html> <head> <title>班级成绩计算器</title> </head> <body> <form action="scoreCalculator.jsp" method="post"> 学生分数：<input type="number" name="studentScore"><br> <input type="submit" value="提交"> </form> <hr> <h2>计算结果:</h2> <p>平均分: <span id="averageScore"></span></p> <p>最高分: <span id="highestScore"></span></p> <p>最低分: <span id="lowestScore"></span></p> </body> </html> ``` 2. **JSP部分 (scoreCalculator.jsp)**: ```jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% double totalScore = 0; int studentCount = 0; double highestScore = Double.MIN_VALUE; double lowestScore = Double.MAX_VALUE; if (request.getParameter("studentScore") != null) { double currentScore = Double.parseDouble(request.getParameter("studentScore")); totalScore += currentScore; studentCount++; if (currentScore > highestScore) { highestScore = currentScore; } if (currentScore < lowestScore) { lowestScore = currentScore; } } double averageScore = totalScore / studentCount; out.println("<script>"); out.println("document.getElementById('averageScore').innerHTML = " + averageScore + ";"); out.println("document.getElementById('highestScore').innerHTML = " + highestScore + ";"); out.println("document.getElementById('lowestScore').innerHTML = " + lowestScore + ";"); out.println("</script>"); %> ``` 在这个例子中，用户提交表单后，服务器端的JSP页面会获取并累加分数，并更新显示的结果。

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