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发表于 2019-8-7 12:44:49
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显示全部楼层
课后题就有呀
Linux 和 MacOS:
- #include <stdio.h>
- #include <unistd.h>
- #include <dirent.h>
- #include <string.h>
- #include <stdlib.h>
- #include <sys/stat.h>
- #define MAX 256
- long total;
- int countLines(const char *filename);
- int isCode(const char *filename);
- 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;
- }
- int isCode(const char *filename)
- {
- int length;
- length = strlen(filename);
-
- if (!strcmp(filename + (length - 2), ".c"))
- {
- return 1;
- }
- else
- {
- return 0;
- }
- }
- void findAllDirs(const char *path)
- {
- DIR *dp;
- struct dirent *entry;
- struct stat statbuf;
- if ((dp = opendir(path)) == NULL)
- {
- fprintf(stderr, "The path %s is wrong!\n", path);
- return;
- }
- chdir(path);
- while ((entry = readdir(dp)) != NULL)
- {
- lstat(entry->d_name, &statbuf);
- if (!strcmp(".", entry->d_name) || !strcmp("..", entry->d_name))
- continue;
- if (S_ISDIR(statbuf.st_mode))
- {
- findAllDirs(entry->d_name);
- }
- else
- {
- if (isCode(entry->d_name))
- {
- total += countLines(entry->d_name);
- }
- }
- }
- chdir("..");
- closedir(dp);
- }
- int main()
- {
- char path[MAX] = ".";
- printf("计算中...\n");
- findAllDirs(path);
- printf("目前你总共写了 %ld 行代码!\n\n", total);
- return 0;
- }
复制代码
Windows:
- #include <io.h>
- #include <direct.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #define MAX 256
- long total;
- int countLines(const char *filename);
- void findAllCodes(const char *path);
- void findALLFiles(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;
- }
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