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从C中的文本文件读取字符串

[英]Reading in character strings from text file in C

I need to write a program that reads in strings from a text file and stores each word in a struct, ie if the first line in the text file is: 我需要编写一个程序,该程序从文本文件中读取字符串并将每个单词存储在结构中,即,如果文本文件中的第一行是:

TOYOTA COROLLA 2014 WHITE 丰田COROLLA 2014白色

Toyota would go into structname.model, corolla would go into structname.make, etc. I am having trouble with reading each string into their according element in the struct. Toyota将进入structname.model,花冠将进入structname.make,等等。我在将每个字符串读入结构中的相应元素时遇到了麻烦。 My source code (which I have not posted here bc it is very long and a large percentage of it is pretty irrelevant to this problem) compiles with no errors, but I am 99% sure it is a problem with my loop which is supposed to be reading in the values: 我的源代码(我没有在这里发布它的代码很长,并且很大一部分与这个问题无关)可以正确编译,但是我有99%的肯定是我的循环有问题,应该是正在读取以下值:

carRecord cars[10]; //declares array of structs containing carRecord info
char filename[256];
char buf[256];
FILE *carfile;

printf("Please enter the name of a file to read car records from (followed by the file extension): ");
scanf("%s", filename);

carfile = fopen(filename, "r");

if (!carfile)
{
    printf("File failed to open.\n");
}

printf("ERROR CHECK 1");

int i = 0;
while ((fgets(buf, sizeof(buf), carfile) != NULL) && i < 10)
{
    cars[i].make = strdup(strtok(buf, " "));

    cars[i].model = strdup(strtok(buf, " "));

    cars[i].year = atoi(strdup(strtok(buf, " ")));

    cars[i].color = strdup(strtok(buf, " "));

    i++;
}

The first error check prints, and then the program crashes. 打印第一个错误检查,然后程序崩溃。 I have a strong, scary feeling this has to do with the malloc command, but I am pretty new to C and have absolutely no idea how to implement it. 我有一种强烈的恐惧感,这与malloc命令有关,但是我对C还是很陌生,并且完全不知道如何实现它。

If at all helpful, the struct declaration for carRecord is: 如果有帮助,carRecord的结构声明为:

struct carRecord{
    char* make;     //make of car
    char* model;    //model of car
    int year;           //year of car
    char* color;    //color of car
};

(EDIT: code has been updated to reflect below comments) (编辑:代码已更新,以反映以下评论)

I am pretty sure, if you allocate memory to the structure elements, you'll get desired result. 我很确定,如果您将内存分配给结构元素,您将获得理想的结果。 Else, as you mentioned, use calloc/malloc. 如您提到的,否则,请使用calloc / malloc。

struct carRecord{
    char make[100];     //make of car
    char model[100];    //model of car
    int year;           //year of car
    char color[100];    //color of car
};

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