1) 实现对两个文件数据进行合并,生成新文件3.txt

2) 抽取出三科成绩中有补考的学生并保存在一个新文件4.txt

3) 对合并后的文件3.txt中的数据按总分降序排序(至少采用两种排序方法实现)

4) 输入一个学生姓名后,能查找到此学生的信息并输出结果(至少采用两种查找方法实现)-Two) to achieve the merger of the 1 documents, to generate a new file 3.txt

2) extract the three subjects have make-up students and saved in a new file 4.txt

3) the merged file 3.txt in the data sorted by descending score (at least by two ranking method)

4) after entering a student s name, can find the information of this student and output the result (at least two kinds of search method to achieve)