c语言关于文件的写入。部分代码如下,为什么文件里面什么都没有?_百度...答:printf("please input pwd :\n");scanf("%s",&q.pwd);if((fp = fopen("order.txt","w"))==NULL){ printf("failure !\n");return 0;} fprintf(fp,"%s\n",q.tel);fprintf(fp,"%s\n",q.name);fprintf(fp,"%s\n",q.address);fprintf(fp,"%s\n",q.pwd);fclose(fp);} ...