C language file writing ------ C language

Yesterday introduced the reading of C language files, and then introduced the writing of C language files.

The reading of C language is the three functions of fgetc(), fgets(), and fread().

Then the writing must be the three functions fputc(), fputs(), and fwrite(). Let's try that next.

#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
	//第一步打开文件
	FILE* file = fopen("test.txt", "w");

	//进行判定
	if (file == NULL)
	{
		printf("打开文件失败！！！");
		return 0;
	}

	fputc('A', file);
	fputs("我",file);
	fwrite("你快回来",2,8,file);
	//第三步关闭文件
	fclose(file);

	return 0;


}