关于c语言中用于txt的函数的信息

关于C语言中读取TXT文本的内容

①.通过fopen函数打开文本,例如file

*fp=fopen("in.txt","r");//返回一个file类型的句柄

关闭已经打开的文件.

#include

int main()

{

int data;

file *fp=fopen("in.txt","r");

if(!fp)

printf("can't open file\n");

return -1;

}

while(!feof(fp))

fscanf(fp,"%d",data);

printf("\n");

fclose(fp);

return 0;

C语言如何读取txt文本里面的内容?

C语言可以使用fopen（）函数读取txt文本里.

示例：

#include stdio.h

void main( void )

int numclosed;

/* Open for read (will fail if file "data" does not exist) */

if( (stream? = fopen( "data", "r" )) == NULL )

printf( "The file 'data' was not opened\n" );

else

printf( "The file 'data' was opened\n" );

/* Open for write */

/* Close stream */

/* All other files are closed: */

numclosed = _fcloseall( );

printf( "Number of files closed by _fcloseall: %u\n", numclosed );

扩展资料

使用fgetc函数

#include stdlib.h

FILE *stream;

int? i, ch;

/* Open file to read line from: */

if( (stream = fopen( "fgetc.c", "r" )) == NULL )

exit( 0 );

ch = fgetc( stream );

buffer[i] = (char)ch;

/* Add null to end string */

buffer[i] = '\0';

printf( "%s\n", buffer );

fclose( stream );

C语言用什么函数 读取txt

写几段代码就是了

char s[100];

FILE *fp;

fp=fopen("d:\\1.txt","r");//打开文件,注意是两个\\

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