C语言简单示例(文件读写1)

#include<stdio.h>#define FILEDIR "D:\\test1.txt"int main(){FILE *fp;char ch='a';if ( (fp =fopen(FILEDIR,"at+")) == NULL ){printf("Cannot open file strke any key exit!");getch();exit(1);}printf("input a string:\n");ch = getch();while(ch != '\r'){fputc(ch,fp);putchar(ch);ch = getch();}printf("\n \n");ch = getchar();while(ch != '\n'){fputc(ch,fp);//putchar(ch);ch = getchar();}rewind(fp);ch = fgetc(fp);while(ch != EOF){putchar(ch);ch = fgetc(fp);}printf("\n");fclose(fp);getch();return 0;}