Question

我尝试将用户输入写入文件，以便可以通过wifi发送。我已经关注了一些教程，从我收集的内容来看，这似乎是将数据写入文件的合适方法。不幸的是，虽然程序可以识别我想要写的信息，但它不会将其写入文件，甚至不会自己创建文件。

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#define MAX_STR_LEN 120

int main(){

char *cArray[MAX_STR_LEN] = { "example", "dinosaurs" };
char cInput[MAX_STR_LEN] = { 0 };
int y = 0;
FILE *pWrite;

printf("Type your message:\n");
fgets(cInput, MAX_STR_LEN, stdin);
cInput[strlen(cInput) - 1] = 0;     /* strip newline from input */
printf("\nInitialised string array:\n");

while (cArray[y]){
    char * ptr = cInput;
    while ((ptr = strstr(ptr, cArray[y])) != NULL){
        char *ep = strchr (ptr, ' ');
        if (ep) *ep = 0;              /* null-terminate at space */
        printf("%s\n", ptr++);
        pWrite = fopen("test.txt", "a");
        if ( pWrite != NULL ) {
            fprintf(pWrite, "%s\n", ptr);
            fclose(pWrite);
        } else {
            goto ErrorHandler; //there is a file i/o error
        }
        if (ep) *ep = ' ';            /* put the space back      */
    }
    y++;
    }
time_t rawtime;
struct tm * timeinfo;

time ( &rawtime );
timeinfo = localtime ( &rawtime );
printf ( "Timestamp: %s", asctime (timeinfo) );

exit(EXIT_SUCCESS); //exit program normally

ErrorHandler:
perror("The following error occurred");
exit(EXIT_FAILURE); //exit program with error
}

输出：

Type your message:
this is an example

Initialised string array:
example
Timestamp: Sat Mar  7 12:20:02 2015
Program ended with exit code: 0

我还是很新，所以任何反馈都会非常感激。同样，如果任何人对OSX的Multipeer连接框架有一个模糊的理解，并且可以将我引导到一个资源，那就太棒了。

试图将数据写入文件

0 个答案: