clopen.c

来自「用C语言编写的订票系统,功能都能实现,附有源码和可执行文件」· C语言 代码 · 共 29 行

#include "HeadMain.h"

int ClOpen()
{
	struct Client* CPtr;
	FILE* fp;
	if(!(fp = fopen("Client.data", "r+")))
	{
		fp = fopen("Client.data", "w+");
		OpenErr();
		return 0;
	}
	//开始读取文件
	while(!feof(fp))
	{
		CPtr = (struct Client*)malloc(sizeof(struct Client));
		CPtr->Front = CPtr->Next = NULL;
		fscanf(fp, "%d %s %s %s %d\n", 
			&CPtr->Num, CPtr->ID, CPtr->Name, CPtr->LID, &CPtr->Amount);
		if(!CInsert(CPtr))
		{
			InitErr();
			fclose(fp);
			return 0;
		}
	}
	fclose(fp);
	return 1;
}