一条记录有学号和成绩两个数据项，按成绩由大到小建立两个有序表（分别顺序表和链式表实现），并合并成一个有序表（有能力的同学才做这个合并）。第一个表输入的数据如下（学号，成绩）：(1,70),(2,85), (3,75), (4,90)，第二个表输入的数据如下（学号，成绩）：(5,60),(6,80), (7,76),(8,50)。-Student ID and a record performance with two data items, the establishment of two ordered by descending score tables (each table and the chain table in order to achieve), and combined into an ordered table (before students have the ability to do this combined). The first table input data as follows (student number, results): (1.70), (2,85), (3,75), (4,90), the second table input data as follows (Student ID, results): (5,60), (6,80), (7,76), (8,50).