該程序假設將管道分隔文件讀入結構數組中。將管道分隔文件*讀取到結構數組中C
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define LEN_LINE 160
#define LEN_NAME 40
#define MAX_LINES 60
#define LEAGUE_NAME 5
#define PARK_NAME 35
#define TEAM_ADDRESS 40
#define TEAM_CITY 30
#define TEAM_STATE 5
#define ZIP_CODE 10
#define PHONE_NUMBER 30
#define WEB_ADDRESS 25
#define LEN_TEAM 60
typedef struct
{
char leagueName[LEAGUE_NAME + 1];
char teamName[LEN_NAME + 1];
char parkName[PARK_NAME + 1];
char teamAddress[TEAM_ADDRESS + 1];
char teamCity[TEAM_CITY + 1];
char teamState[TEAM_STATE + 1];
char zipCode[ZIP_CODE + 1];
char phoneNumber[PHONE_NUMBER + 1];
char webAddress[WEB_ADDRESS + 1];
} team_t;
void displayTeams(team_t teams[], int count);
int main(void)
{
team_t teams[LEN_TEAM] = { 0 };
FILE *filePtr;
int index, count;
char line[LEN_LINE + 1] = {0};
char *startPtr, *endPtr;
filePtr = fopen("MLBteams.txt", "r");
if (filePtr == NULL)
{
printf("Error in opening file\n");
}
else
{
index = 0;
while (index < LEN_TEAM && fgets(line, sizeof(line), filePtr))
{
startPtr = line;
endPtr = strchr(startPtr, '|');
strncpy(teams[index].leagueName, startPtr, endPtr - startPtr);
startPtr = endPtr + 1;
endPtr = strchr(startPtr, '|');
strncpy(teams[index].teamName, startPtr, endPtr - startPtr);
startPtr = endPtr + 1;
endPtr = strchr(startPtr, '|');
strncpy(teams[index].parkName, startPtr, endPtr - startPtr);
startPtr = endPtr + 1;
endPtr = strchr(startPtr, '|');
strncpy(teams[index].teamAddress, startPtr, endPtr - startPtr);
startPtr = endPtr + 1;
endPtr = strchr(startPtr, '|');
strncpy(teams[index].teamCity, startPtr, endPtr - startPtr);
startPtr = endPtr + 1;
endPtr = strchr(startPtr, '|');
strncpy(teams[index].teamState, startPtr, endPtr - startPtr);
startPtr = endPtr + 1;
endPtr = strchr(startPtr, '|');
strncpy(teams[index].zipCode, startPtr, endPtr - startPtr);
startPtr = endPtr + 1;
endPtr = strchr(startPtr, '|');
strncpy(teams[index].phoneNumber, startPtr, endPtr - startPtr);
startPtr = endPtr + 1;
endPtr = strchr(startPtr, '|');
strncpy(teams[index].webAddress, startPtr, endPtr - startPtr);
index++;
}
fclose(filePtr);
count = index;
displayTeams(teams, count);
}
return 0;
}
void displayTeams(team_t teams[], int count)
{
int index;
for (index = 0; index <= count - 1; index = index + 1)
{
printf("LEAGUE: %s\nTEAM: %s\nPARKNAME: %s\nADDRESS: %s\nCITY: %s\nSTATE: %s\nZIPCODE: %i\nPHONE#: %s\nWEBADDRESS: %s\n\n",
teams[index].leagueName, teams[index].teamName, teams[index].parkName,
teams[index].teamAddress, teams[index].teamCity, teams[index].teamState,
teams[index].zipCode, teams[index].phoneNumber, teams[index].webAddress);
}
}
我正在使用它來嘗試閱讀此文件。
A|Baltimore Orioles|Oriole Park|333 West Camden Street|Baltimore|MD|21201|(410) 685-9800|orioles.com
A|Boston Red Sox|Fenway Park|4 Yawkey Way|Boston|MA|02215|(617) 267-9440|redsox.com
N|St. Louis Cardinals|Busch Stadium|700 Clark Street|St. Louis|MO|63102|(314) 345-9600|cardinals.com
N|Washington Nationals|Nationals Park|1500 South Capitol Street, SE|Washington|DC|20003-1507|(202) 675-6287|nationals.com
這是幾行(共30個團隊)。那麼當我運行該程序時,它立即崩潰,並給我沒有錯誤messages.I將不勝感激,如果有人可以向我解釋爲什麼代碼不工作。我猜是我正在使用strncpy函數不正確。
您是否在調試器中運行以查看線路和其他變量在經過時的樣子?或者也許只是將值打印到'stdout'? –