我正在尝试制作一个小程序，该程序从分隔（由“|”）分隔的文件中获取输入，例如文件中的一行如下所示：
name|phone|address|city|state|zip
出于某种原因，每次我试图让它将结构数组中的所有内容写入二进制文件时，数组的链接都会出错。我已经看了几个小时了，不知道为什么会这样。我注意到的一个问题是，如果我决定运行程序并在向索引 1 写入内容后打印出数组的索引 0 中的内容，它会弄乱索引 0（每个索引都包含一个结构）。我不确定为什么。
请帮忙，我已经在键盘上敲了几个小时，试图弄清楚为什么它会给我这个问题。抱歉，忘了说它应该运行第一个参数是文件 ex ./ExerciseOne.out /path/to/file.txt 的路径
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
/*
* ExerciseOne.c
*
* Created on: Sep 24, 2012
* Author: kevin
*/
typedef struct personal_Info {
char *Name;
char *Phone;
char *address;
char *city;
char *state;
int zip;
} PInfo ;
void loopTokens(PInfo *, char *);
void PrintStruct(PInfo *);
void PrintStructArray(PInfo p[], int);
void transferText(PInfo *, int);
void transferTextBin(PInfo p[], int);
void readTextBin(FILE *, PInfo *, int );
int main(int argc, char *argv[]){
int index = 0;
int numLines = 0;
char *lineOfText = malloc(80);
//Open File
FILE *fp;
if ((fp = fopen(argv[1], "r")) == NULL){
printf("File could not be opened");
}
else {
fclose(fp);
fp = fopen(argv[1], "r");//inputs the argv as the vile to read
}
fscanf(fp, "%d \n", &numLines);
//Create Arrays for Binary and Text structs
PInfo TextInfo[numLines];
PInfo *TextInfo_ptr;
/*Commented code
* TextInfo[index] = *TextInfo_ptr;//Point to structure ##Unneeded##
* printf("this is before the transferTextBin %s \n", TextInfo[0].Phone);//Works
*/
while(!feof(fp)&&index<numLines){
TextInfo_ptr = &TextInfo[index];//Structure points to the proper hole in array; current index//Looks like it advances the count for the ptr
fgets(lineOfText, 80, fp);
loopTokens(TextInfo_ptr, lineOfText);//puts pointer to the array index into function
printf("this is before the transferTextBin %s \n", TextInfo_ptr->Phone);//Works
printf("this is before the transferTextBin %s \n", TextInfo[0].Phone);//problem second time around
printf("this is before the transferTextBin %s \n", TextInfo[1].Phone);//works
//PrintStruct(TextInfo_ptr);
index++;
}
//transferText(TextInfo, numLines);//Will do it in regular
printf("this is before the transferTextBin %s \n", TextInfo[0].Phone);//Here it is suddenly losing it
transferTextBin(TextInfo, numLines);//will do it in bin
fclose(fp);
FILE *fBIN;
fBIN = fopen("fOUT.dat", "rb");// may need to insert this into method
//readTextBin(fBIN, BinInfo, numLines);
return(0);
}
void loopTokens(PInfo *p, char *textLine){//Want to pass in INDIVDUAL structs
char *buffer;
int index = 0;
p->Name = malloc(80);
p->Phone = malloc(80);
p->address = malloc(80);
p->city = malloc(80);
p->state = malloc(80);
p->zip = 0;
/* mallocate each field in the current structure */
buffer = strtok(textLine, "|"); /* Tokenize the string */
while(buffer != NULL && strcmp(textLine,"\n")){ /* loop through all tokens */
if(index == 0){
//strcpy(p->Name,textLine);
p->Name = buffer;
buffer = strtok(NULL, "|");
index++;
}
else if(index == 1){
p->Phone = buffer;
buffer = strtok(NULL, "|");
index++;
}
else if(index == 2){
p->address = buffer;
buffer = strtok(NULL, "|");
index++;
}
else if(index == 3){
p->city = buffer;
buffer = strtok(NULL, "|");
index++;
}
else if(index == 4){
p->state = buffer;
buffer = strtok(NULL, "|");
index++;
}
else if(index == 5){
p->zip = 0;
p->zip = (int)atoi(buffer);
buffer = strtok(NULL, "|");
index++;
}
}
index = 0;
}
void PrintStruct(PInfo *p){//Gets pointer to the struct
printf("This is the supposed name: %s The Phone is : %s, the address is : %s %s %s %d\n", p->Name, p->Phone, p->address, p->city, p->state, p->zip );
}
void PrintStructArray(PInfo p[], int lines){//Gets Entire array of structs; prints everything out
int index = 0;
while(index < lines){
printf("This is the supposed name: %s The Phone is : %s, the address is : %s %s %s %d\n", p[index].Name, p[index].Phone, p[index].address, p[index].city, p[index].state, p[index].zip );
}
}
void transferText(PInfo *p, int numLines){//Transfers text
FILE *fOUT;//open file for writing
int index = 0;
fOUT = fopen("fOUT.txt", "w");//Open file for writing
while(index < numLines){
fputs(p->Name,fOUT);
fputs(p->Phone,fOUT);
fputs(p->address,fOUT);
fputs(p->city,fOUT);
fputs(p->state,fOUT);
fputs(p->zip,fOUT);
}
fclose(fOUT);
}
void transferTextBin(PInfo p[], int numLines){
FILE *fOUT;//open file for writing
//int index = 0;
fOUT = fopen("fOUT.dat", "wb");
printf("this is the phone of the first index %s", p[0].Phone );
//printf("Ti the supposed name: %s The Phone is : %s, the address is : %s %s %s %d\n", p[index].Name, p[index].Phone, p[index].address, p[index].city, p[index].state, p[index].zip );
//while(index < numLines){
/* fwrite(p[index]->Name, sizeof(p[index]->Name), 1, fOUT);
fwrite(p[index]->Phone, sizeof(p[index]->Phone), 1, fOUT);
fwrite(p[index]->address, sizeof(p[index]->address), 1, fOUT);
fwrite(p[index]->city, sizeof(p[index]->city), 1, fOUT);
fwrite(p[index]->state, sizeof(p[index]->state), 1, fOUT);*/
//fwrite(p->zip, sizeof(p->zip), 1, fOUT);
// }
fclose(fOUT);
}
void readTextBin(FILE *fIN, PInfo *bInfo, int numLines){
int index = 0;
//char *buffer;
printf("This is what is in the File: ");
//bInfo[index].Name = fread(buffer, 80, 1, fIN);
//bInfo[0]->Name = malloc(80);
while(!feof(fIN) && index<numLines){
fread(bInfo[index].Name, 80, 1, fIN);
fread(bInfo[index].Phone, 80, 1, fIN);
fread(bInfo[index].address, 80, 1, fIN);
fread(bInfo[index].city, 80, 1, fIN);
fread(bInfo[index].state, 80, 1, fIN);
//fread(bInfo[index]->zip, 80, 1, fIN);
PrintStruct(bInfo);
index++;
}
}