1、文档格式
读取每行数据，并解析为号码和地址，分别打印。
void readline(FILE *file);int main(){//设置区域，支持宽字符setlocale(LC_CTYPE, "");FILE *file = fopen("location.txt", "rb");//UTF-16LE,以二进制格式只读打开if (file == NULL) {wprintf(L"Error opening file.\n");return 1;}fseek(file,2L,SEEK_CUR);//跳过两字节，BOMreadline(file);//调用fclose(file);// Close the filereturn 0;}void readline(FILE *file){wchar_t buffer[256];//存储每行数据int number;//存储号码wchar_t address[256];//存储地址//遍历每行，并输出while (fgetws(buffer, 256, file) != NULL) {// 解析行数据，tab间隔符if (swscanf(buffer, L"%d\t%ls",&number, address) == 2) {//打印每行数据wprintf(L"No: %d, Address: %ls\n", number, address);} else {wprintf(L"Error parsing line: %ls\n", buffer);}}}
3、构建数据链表
typedef struct Node{int number;//号码wchar_t address[256];//地址struct Node * pNext;}NODE, * PNODE;
调整上述函数，构建数据链表，并打印。
typedef struct Node{int number;//号码wchar_t address[256];//地址struct Node * pNext;}NODE, * PNODE;void readline(FILE *file,PNODE *pHead);int iniList(PNODE *pHead,FILE *file);void printList(PNODE pHead);int main(){//设置区域，支持宽字符setlocale(LC_CTYPE, "");FILE *file = fopen("location.txt", "rb");//UTF-16LE,以二进制格式只读打开if (file == NULL) {wprintf(L"Error opening file.\n");return 1;}fseek(file,2L,SEEK_CUR);//跳过两字节，BOMPNODE pHead;readline(file,&pHead);//调用fclose(file);// Close the filewprintf(L"===============================================\n");printList(pHead);return 0;}void readline(FILE *file, PNODE *pHead){wchar_t buffer[256];//存储每行数据//int number;//存储号码//wchar_t address[256];//存储地址*pHead =(PNODE)malloc(sizeof(NODE));if (!pHead){wprintf(L"Error malloc\n");return;}(*pHead)->number=0;memset((*pHead)->address,0,256);(*pHead)->pNext=NULL;PNODE pnail = *pHead;PNODE pnew;//遍历每行，并输出while (fgetws(buffer, 256, file) != NULL) {pnew=(PNODE)malloc(sizeof(NODE));if (!pnew){wprintf(L"Error malloc\n");return;}// 解析行数据，tab间隔符if (swscanf(buffer, L"%d\t%ls",&(pnew->number),pnew->address) == 2) {//wprintf(L"No: %d, Address: %ls\n", pnew->number, pnew->address);pnail->pNext=pnew;pnail=pnew;pnail->pNext=NULL;pnew=NULL;} else {wprintf(L"Error parsing line: %ls\n", buffer);}}pnew = *pHead;free(pnew);*pHead=(*pHead)->pNext;}void printList(PNODE pHead){PNODE p;while(pHead!=NULL){p=pHead;//打印数据wprintf(L"No: %d, Address: %ls\n", p->number, p->address);pHead=pHead->pNext;free(p);}}
