2 使用顺序查找方法，从查找表中查找姓名为赵阳和王夏的学生。如果查找成功，则显示该生的相关信息；如果查找不成功，则给出相应的提示信息。

3 使用直接插入排序方法，按姓名对学生信息进行排序。输出排序前和排序后的学生信息表，验证排序结果。

4 使用直接选择排序方法，对学生信息中的C成绩进行排序。输出排序前和排序后的学生信息表，验证排序结果。

-2 using the sequential search method, from the lookup table to find the name of Zhao and Wang Xia students. If the search is successful, displays the raw information　if search is unsuccessful, then the tips are given the appropriate information. 3 using the direct insertion sort method, by name sort of student information. Sorting out the students before and after sorting information table to verify the results. 4 using the direct selection sorting method, the C student information to sort the results. Sorting out the students before and after sorting information table to verify the results.