C语言文件的写入字符串写入文件

#define _CRT_SECURE_NO_WARNINGS
#include"stdio.h"
#include"stdlib.h"
#include"string.h"


void main()
{
	int i = 0;
	char a[] = "abcdefdsafdsfgbbb";
	FILE *fp = NULL;
	//win  linux通用
	char *filename = "d:/1.txt";


	fp = fopen(filename, "a");
	//循环写入
	for (i = 0; i < strlen(a); i++)
	{
		fputc(a[i], fp);
	}
	fclose(fp);
	

	system("pause");
}