C语言实现文件写入

1、首先打开VC++6.0

2、选择文件，新建

3、选择C++ source file 新建一个空白文档

4、先声明头文件#include <stdio.h>

5、写上主函数void main(){}

6、主要代码FILE *in酆璁冻嘌file,*outfile,*otherfile;char input;char inputs[10]; int i=0;infile = fopen("d:\\infile.txt","r+");//用fopen函数打开文件outfile = fopen("d:\\outfile.txt","a+");//用fopen函数打开文件if ( !infile )printf("open infile failed....\n");if ( !outfile)printf("open outfile failed...\n");printf("*********************************************\n");printf("** This program is to show file operation! **\n");printf("** The input file is: **\n");printf("** d:\\infile.txt **\n");printf("** The contents in this file is: **\n");printf("\n");for(;;){ input = fgetc(infile);//死循环读出文件内容printf("%c",input);putc(input,outfile);//写入内容i++;if(input == ’\n’ || input == EOF)break; } fclose(infile); fclose(outfile); scanf("%d",i);

7、运行结果