建立一个或多个结构体代表不同的复杂数据类型。



利用结构体数组来暂时存储要进行操作的数据



通过把结构体数组元素存到文件里的形式完成对数据的永久存储。







一般操作流程为







如对某个记录进行操作



1. 先把所有数据从文件中调入到一个结构体数组中暂时存储



2. 再通过指针运算或数组运算对数组中的某些记录进行操作和赋值。



3. 最终结束操作后，把改变过的结构体数组再存到文件中保存起来-establish a structure or more different types of complex data. Use of the structure for temporary storage arrays to operate through the data structure of the array elements onto the documents in the form of completed right of permanent data storage. Process for general operating as a record of an operation. First of all data transferred from paper to an array structure two temporary storage. Operational Guidelines through the operation of the array or array of certain records and assignment operators. 3. After the end of the final operation, changed the structure of the array no longer store documents