#include<stdio.h> #include<string.h> int main() { FILE *file = fopen("text","a+"); if(NULL == file) { perror("fopen"); return 1; } char *str = "helloworld"; int count1 = fwrite(str, sizeof(str), strlen(str), file); if(0 == count1) { perror("fwrite"); fclose(file); return 2; } fseek(file, 0, SEEK_SET); char buffer[1024]; int count2 = fread(buffer,sizeof(char), 1024, file); if(0 == count2) { perror("fread"); fclose(file); return 3; } printf("%s\n",buffer); fclose(file); return 0; }
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