用INET或XMLHTTP winsock webbrowser提交表单登录一个网站，特别是含有验证的的网站，怎么获取验证码图片放到PictureBox或Image里显示。-INET or use XMLHTTP winsock webbrowser login form to submit a site, especially with proven website, how to obtain verification code picture on display in PictureBo

编写1个JSP页面inputNumber.jsp，该页面提供一个表单，用户可以通过表单输入两个数和四则运算符号提交给该页面。用户提交表单后，JSP页面inputNumber.jsp将计算任务交给一个Tag文件Computer.tag去完成。-Write a JSP page inputNumber.jsp, the page provides a form where the user can enter through the form of two numbers and four arit