c语言中使用程序读取文件。
#include <stdio.h> #include <stdlib.h> int main() { int ch; FILE * fp; char fname[50]; printf("enter the name of the file: "); scanf("%s", fname); fp = fopen(fname, "r"); if(fp == NULL) { printf("failed to open file. "); exit(1); } while((ch = getc(fp)) != EOF) putchar(ch); fclose(fp); return 0; }