说明：  小孩子要上小学了，老师交待每个小学生天天要对答案的家庭作业，就是让家长出数字题，小孩子来答。天天出，也烦的，所以弄个这个小程序，让他自动出题，计算好相应的答案。你可以打印或者直接在电脑上做出来，核对即可。 如果有什么好的建议， 可以与我联系提出来。。
(Children to elementary school, every day, for each primary school teacher explain the answers to the homework is to give parents a number of questions, a child to answer. Out every day, but also a lot of trouble, so get hold of this small program, so he automatically a problem, calculate the corresponding answer. Or you can print directly on the computer to do it, you can check. If you have any good suggestions, you can contact me raised. .)