這題c++要怎樣做? 請教教小弟>﹏<

wwf007

"You will write a program that reads in a file and counts the number
of lines, words, and characters. Your program should ask the user to input a filename.
Open the file and report an error if the file does not exist or cannot be opened for some
other reason.
Then read in the contents of the file and count the number of lines, words, and characters
in the file. Also print additional information about the file, such as the longest and
shortest words, and longest and shortest lines. For simplicity, we define a word to be one
or more characters ending with white space (a space, tab, carriage return, etc.). Functions
for checking the types of characters can be found in the ctype.h header file, so you want
to include this header file in your program."

我不會做>;﹏<

wwf007

#include <iostream.h>;
#include <stdlib.h>;
#include <fstream.h>;
#include <string.h>;

int main()
{
char infile[100], buffer[100], *pch, *pch1, ch;
int total_line=0, total_word=0, total_char=0, i=0;

cout<<"Enter input file name:";
cin>;>;infile;
ifstream in(infile);
if(!in)
cout<<"Error open file...";

else

while(in.getline(infile,100, '\\n'))
{
total_line++;

if (pch = strtok (infile," ,."){

while (pch != NULL) {
pch = strtok (NULL, " ,.";
total_word++;
}//while (pch != NULL)
}
}//while

cout<<"It has "<<total_line<<" lines"<<endl;
cout<<"It has "<<total_word<<" words"<<endl;
cout<<"It has "<<total_char<<" characters"<<endl;

in.close();

system("AUSE";
return 0;
}//main

我還欠甚麼?

wwf007

PUSH

powerpolly

int main(int argc,char *argv[])
{
   if(argc!=2)
      exit();
   if((fp=fopen(*argv[1],"r")==NULL)
   {printf("read file %s failed!",*argv[1]);exit();}
   else
   {
      ……
   }
   
}

wujiajia

argv[1]不需要*号