第七周任务
作者:互联网
1.例题4.9
<body bgcolor = #ffccff> <% double price = 98.78; %> <p style="font-family:宋体;font-size:36;color:blue"> 商品编号A1001,价格8765 <a href ="xg.jsp?id=A1001&price=8765">购买</a><br> 商品编号A1002,价格<%= price%> <a href ="xg.jsp?id=A1002&price=<%= price%>">购买</a></p> </body> <body bgcolor = #EEEEFF> <p style="font-family:宋体;font-size:36;color:blue"> <% String id = request.getParameter("id"); String price = request.getParameter("price"); %> 商品编号:<%= id %><br> 商品价格:<%= price %> </body>
2.实验2
<body bgcolor = #ffccff> <form action="xs.jsp" > <p style="font-family:宋体;font-size:20;color:bleak"> 输入运算数、选择运算符号:<br> <input type=text name="numberOne" size=6/> <select name="operator" > <option selected="selected" value="+">加 <option value="-">减 <option value="*">乘 <option value="/">除 </select> <input type=text name="numberTwo" size=6 /> <br><input type="submit" name="submit" value="提交" /> </form> </p> </body> <body bgcolor = cyan> <p style="font-family:宋体;font-size:20;color:blue"> <% String numberOne=request.getParameter("numberOne"); String numberTwo=request.getParameter("numberTwo"); String operator=request.getParameter("operator"); if(numberOne==null||numberOne.length()==0) { response.sendRedirect("input.jsp"); return; } else if(numberTwo==null||numberTwo.length()==0) { response.sendRedirect("input.jsp"); return; } try{ double a=Double.parseDouble(numberOne); double b=Double.parseDouble(numberTwo); double r=0; if(operator.equals("+")) r=a+b; else if(operator.equals("-")) r=a-b; else if(operator.equals("*")) r=a*b; else if(operator.equals("/")) r=a/b; out.print(a+""+operator+""+b+"="+r); } catch(Exception e){ out.println("请输入数字字符"); } %> </body>
3.制作一个登陆表单,输入账号和密码,如果账号密码相同,跳转到“登录成功”页面,否则跳转到“登录失败”页面
4.在上题的表单中增加一个checkbox,让用户选择“是否注册为会员",如果注册为会员,则在显示时增加文本“欢迎您注册为会员”。
<body> <script type="text/javascript"> function pass(){ if(loginForm.uname.value==""){ alert("账号不能为空!"); return; } if(loginForm.upwd.value==""){ alert("密码不能为空!"); return; } loginForm.submit(); } </script> <form action="tz.jsp" method="post"> 请输入账号:<input name="account" type="text"><br> 请输入密码:<input name="password" type="password"><br> 是否注册为会员:<input type="checkbox" name="zc" value="yes">注册 <input type="checkbox" name="zc" value="n">不注册<br> <input type="submit" value="登陆"> </form> </body> <body> <% request.setCharacterEncoding("utf-8"); String account=request.getParameter("account")==null? "" :request.getParameter("account"); String password = request.getParameter("password") == null ? "" : request.getParameter("password"); if(account.equals(password)){ request.getRequestDispatcher("ok.jsp").forward(request, response); }else{ request.getRequestDispatcher("no.jsp").forward(request, response); } %> </body> <body> <h1>登陆成功</h1> <% request.setCharacterEncoding("utf-8"); String zc=request.getParameter("zc"); if(zc.equals("yes")){ out.print("欢迎您注册会员"); } %> </body> <body> 登陆失败<br> </body>
5.在页面1的表单内输人一个数字N,提交,能够在另一个页面打印N个“欢迎”字符串。
<body> <form action="tj.jsp"> <input type="text" name="num" /> <input type="submit" value="提交" /> </form> </body> <body> <% String number=request.getParameter("num"); int i=Integer.parseInt(number); for(int j=0;j<i;j++){ out.print("欢迎"+"<br>"); } %> </body>
6.在页面1中输入账号和密码,进行登录,如果账号和密码相同,则认为成功登录到页面2,在页面2中显示一个文本框输人用户姓名,输人之后提交,在页面3中显示用户的账号和姓名。
<body> <script type="text/javascript"> function val() { if (loginForm.account.value == "") { alert("账号不能为空"); return; } else if (loginForm.pas.value == "") { alert("密码不能为空"); return; } loginForm.submit(); } </script> <form action="two.jsp"> 账号<input type="text" name="account"> 密码<input type="password" name="pas"> <input type="submit" value="登录" /> </form> </body> <body> <% request.setCharacterEncoding("utf-8"); String zh=request.getParameter("account"); %> <form action="three.jsp"> 用户名<input type="text" name="user"> <input type="submit" value="提交" > <input name="zh" type="hidden" value="<%=zh%>"> </form> </body> <body> <% request.setCharacterEncoding("utf-8"); String zh=request.getParameter("zh"); String yh=request.getParameter("user"); out.print("用户名"+yh+"账号"+zh); %> </body>
标签:return,第七,账号,alert,密码,任务,loginForm,页面 来源: https://www.cnblogs.com/jth123456/p/16154197.html