wc项目

#include "stdio.h"
#include "string.h"
#include "stdlib.h"
int charcalculate=0;
int wordcalculate=0;
int linecalculate=0;
void calculate(char * file)
{
   FILE * fp;
   char a;
   if((fp=fopen(file,"r"))==NULL)
   {
      printf("read file failed！\n");
      exit(-1);
   }
   while(!feof(fp))
  {
     a=fgetc(fp);
     if(a!=' '&&a!='\n'&&a!='\t'&&a!=','&&a!='.'&&a!='!'&&a!=';'&&a!='=')
       charcalculate++;
     if(a==' '||a=='\n'||a=='\t'||a==','||a=='.'||a=='!'||a=='='||a==';')
       wordcalculate++;
     if(a=='\n'||a=='\t')
       linecalculate++;
  }
  linecalculate++;
  charcalculate--;
  fclose(fp);
}
int main(int argc, char* argv[])
{
  FILE *fp;
  calculate(argv[2]);
  while(1)
  {
    if((fp=fopen(argv[2],"r"))==NULL)
   {
      printf("FileNull\n\n\n");
      scanf("%s%s%s",argv[0],argv[1],argv[2]);
      continue;
   }
   else if(!strcmp(argv[1],"-c"))
     printf("File:%sCharNum:%d\n",argv[2],charcalculate);
   else if(!strcmp(argv[1],"-w"))
     printf("File:%sWordNum:%d\n",argv[2],wordcalculate);
   else if(!strcmp(argv[1],"-l"))
     printf("File:%sLineNum:%d\n",argv[2],linecalculate);
   else if(!strcmp(argv[1],"exit"))
   {
      printf("Exit!\n");
      break;
   }
   else
      printf("NullPoint\n");
      printf("\n\n");
      scanf("%s%s%s",argv[0],argv[1],argv[2]);
   }
   return 0;

}