Six, C language realizes the copy of text files and binary files

Six, C language realizes the copy of text files and binary files

1. Code implementation

#include<stdio.h>
#include<assert.h>

//文本文件拷贝
void TxtFileCopy(FILE* des, FILE* arc)
{
    
    
	assert(arc != NULL);//添加断言==if(arc==NULL) printf("源文件不存在，无法读取");

	while (1)
	{
    
    
		char ch = fgetc(arc);

		if (ch == EOF) break;
		
		fputc(ch, des);
	}
	printf("拷贝成功！\n");

	fclose(arc);
	fclose(des);
}

//二进制文件拷贝
void  BinaryFileCopy(FILE* des, FILE* arc)
{
    
    
	assert(arc != NULL);

	char buffer[10];

	int tmp=0;
	//注意：fread()的返回值
	while ((tmp = fread(buffer, sizeof(char), 10, arc))!=0)
	{
    
    
		fwrite(buffer, sizeof(char), 10, des);
	}

	printf("拷贝成功\n");
	fclose(arc);
	fclose(des);

}


int main()
{
    
    
	/*FILE* fp = fopen("D:\\text.txt", "r");
	FILE* fw = fopen("D:\\text1.txt", "w");
	TxtFileCopy(fw, fp);//文本文件拷贝*/

	FILE* fp = fopen("D:\\jay.mp3", "rb");
	FILE* fw = fopen("D:\\1.mp3", "wb");
	BinaryFileCopy(fw, fp);//二进制文件拷贝

	return 0;
}

2. Test results

1. Text file
2. Binary file (a song .mp3 file by Jaylen is used here)
   

3. Summary

• Pay more attention to the difference between text files and binary files
• Pay attention to the return value when using the fread() function
•