wc.exe

Posted 2020-10-08

这是一个由c语言实现的统计程序，它能正确统计程序文件的字符数、单词数、行数，以及递归处理目录下符合条件的文件和返回高级选项（代码行、空行、注释行）。

代码如下：

#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;

     

}