fwrite 在 C 中，它不会在文件中写入正确的单词

Question

I think this is a simple question but I can't get around to find the answer.

I want to write an array into a file. text is the array and number is the number of words in the array.

It runs but in the newfile.txt I don't get the text I want. It prints chinese characters, a lot of spaces. In shorts it's a mess. The problem, I think, is what I store in the memory but I can't figure out how to resolve it.

Thank you in advance: :)

void makefile(char **text,int number) {
    FILE * mf;
    mf = fopen("newfile.txt", "wt");
    fwrite(text,sizeof(text),number,mf);
    fclose(mf);
}

Answer 1

Parameter char **text is a pointer to an array of pointers, each of them pointing to a line of text to be printed. So you will need a loop to iterate over these pointers and write each of them separately. Otherwise, you write a number of addresses in binary format rather than any text, and that's the mess you observe in the file then.

The loop could look as follows:

for (int i=0;i<number;i++) {
   fputs(text[i], mf);
}

If, for some reason, you need to use fwrite , you would write:

for (int i=0;i<number;i++) {
   fwrite(text[i],1,strlen(text[i]),mf);
}