C language file read and write operation, reading data from file

Very early write file read and write operation under Linux system, read data from file

#include <stdio.h>int readinfofromfile (const char *strfile) {FILE *fp;char CH;FP = fopen (strfile, "R");// Read-only way to open the file if (fp==null) {perror ("fopen");//Open file failed print error message return-1;} ch = fgetc (FP), while (!feof (FP))//feof read to the end of the file function {putchar (ch);//The characters in the output file ch = fgetc (FP);//Get the next character}fclose (FP);// After using the file remember to close}int main () {char file[20] = "Data.txt"; Readinfofromfile (file);//system ("CP file Data.csv");}

C language file read and write operation, reading data from file