can not open the file

wangschool · 发表于 2022-4-17 19:31:03

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运行下面的代码，照着小甲鱼的代码敲的啊，然后显示 can not open the file

#include <io.h>
#include <direct.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX 256

long total;

int countLines(const char *filemane);
void findAllCodes(const char *path);
void findALLDirs(const char *path);

int countLines(const char *filename)
{
FILE *fp;
int count = 0;
int temp;

if ((fp = fopen(filename, "r")) == NULL)
{
fprintf(stderr, "Can not open the file: %s\n",filename);
return 0;

}

while ((temp = fgetc(fp)) != EOF)
{
if (temp == '\n')
{
count++;
}
}

fclose(fp);

return count;

}

void findAllCodes(const char *path)
{

struct _finddata_t fa;
long handle;
char thePath[MAX], target[MAX];

strcpy(thePath,path);
if((handle == _findfirst(strcat(thePath, "/*.c"), &fa)) != -1L)
{
do
{

sprintf(target, "%s%s", path, fa.name);
total += countLines(target);

}while (_findnext(handle, &fa) == 0);
}

_findclose(handle);

}

void findALLDirs(const char *path)
{
struct _finddata_t fa;
long handle;
char thePath[MAX];

strcpy(thePath, path);
if((handle = _findfirst(strcat(thePath, "/*"), &fa)) == -1L)
{

fprintf(stderr, "The path %s is wrong!\n",path);
return;

}

do
{
if (!strcmp(fa.name, ".") || !strcmp(fa.name, ".."))
continue;

if (fa.attrib == _A_SUBDIR)
{
sprintf(thePath, "%s%s", path, fa.name);
findAllCodes(thePath);
findALLDirs(thePath);

}

}while (_findnext(handle, &fa) == 0);

_findclose(handle);

}

int main()
{

char path[MAX] = ".";

printf("计算中。。。\n");

findAllCodes(path);
findALLDirs(path);

printf("目前你总共写了 %ld 行代码!\n\n", total);
system("pause");

return 0;

}

zzxhh628 · 发表于 2022-4-17 19:45:36

本帖最后由 zzxhh628 于 2022-4-17 19:47 编辑

你这个文件路径不正确啊，那个path变量是需要你自己设置的，根据你要打开文件的路径来给它赋值，不然它这个路径根本不正确肯定无法打开文件，这个path里的路径必须是个有效路径。

jackz007 · 发表于 2022-4-17 20:30:25

这一句

                        sprintf(target , "%s%s", path , fa . name) ;

改为

                        sprintf(target , "%s/%s", path , fa . name) ;

试试看呢

isdkz · 发表于 2022-4-17 21:03:52

本帖最后由 isdkz 于 2022-4-17 21:07 编辑

第一：handle = 写成了 handle ==
第二：%s/%s 少了 /

对你的代码修改如下，错的地方已在代码中写了注释
#include <io.h> #include <direct.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #define MAX 256 long total; int countLines(const char *filemane); void findAllCodes(const char *path); void findALLDirs(const char *path); int countLines(const char *filename) { FILE *fp; int count = 0; int temp; if ((fp = fopen(filename, "r")) == NULL) { fprintf(stderr, "Can not open the file: %s\n",filename); return 0; } while ((temp = fgetc(fp)) != EOF) { if (temp == '\n') { count++; } } fclose(fp); return count; } void findAllCodes(const char *path) { struct _finddata_t fa; long handle; char thePath[MAX], target[MAX]; strcpy(thePath,path); if((handle = _findfirst(strcat(thePath, "/*.c"), &fa)) != -1L) // 这里 handle = 写成了 handle == { do { sprintf(target, "%s/%s", path, fa.name); // %s/%s 少了 / total += countLines(target); }while (_findnext(handle, &fa) == 0); } _findclose(handle); } void findALLDirs(const char *path) { struct _finddata_t fa; long handle; char thePath[MAX]; strcpy(thePath, path); if((handle = _findfirst(strcat(thePath, "/*"), &fa)) == -1L) { fprintf(stderr, "The path %s is wrong!\n",path); return; } do { if (!strcmp(fa.name, ".") || !strcmp(fa.name, "..")) continue; if (fa.attrib == _A_SUBDIR) { sprintf(thePath, "%s/%s", path, fa.name); // %s/%s 少了 / findAllCodes(thePath); findALLDirs(thePath); } }while (_findnext(handle, &fa) == 0); _findclose(handle); } int main() { char path[MAX] = "."; printf("计算中。。。\n"); findAllCodes(path); findALLDirs(path); printf("目前你总共写了 %ld 行代码!\n\n", total); system("pause"); return 0; }

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