用vb编写的一个小小计算器，希望对需要的人有用！ 4.所选类别和开发环境不对 5.乱写说明或说明不够认真 6.压缩文件有密码 7.源码重复或已经存在-Vb prepared with a small calculator, and they hope to those who need it useful! 4. The selected type and development environment is not 5. Write without basis or that