[C语言]删除用户自定义后缀名的所有文件

环境：win7

IDE:DEV-C++

编译器：GCC

编译结果：Success

运行结果：Success

 

使用说明：

1.输入需要查询的目录，比如e:

2.输入需要删除的后缀名：比如:txt

 

注意：本程序使用Remove删除文件，所以删除的文件不会进回收站。

 

 

程序：http://files.cnblogs.com/IAmBetter/DeleteEverything.rar

源码：

#include <stdio.h>#include <direct.h> //_getcwd(), _chdir()#include <stdlib.h> //_MAX_PATH, system()#include <io.h>     //_finddata_t, _findfirst(), _findnext(), _findclose()#include <string.h> #include <windows.h>//删除总数 int count = 0;//获取当前路径void GetCurrentPath(void){   char buf[80];  getcwd(buf, sizeof(buf));  printf("current working directory : %s\n", buf);} //获取后缀名 char *substr(const char*str){    char *ptr, c = '.';     static char stbuf[256];    ptr = strrchr(str, c); //最后一个出现c的位置    if(ptr == NULL){       return stbuf;   }    int pos = ptr-str;//用指针相减 求得索引    unsigned start = pos + 1;    unsigned end = strlen(str);    unsigned n = end - start;    strncpy(stbuf, str + start, n);    stbuf[n] = 0; //字串最后加上0    return stbuf; }//递归查询文件并且删除 void findAllFile(char *pFilePath,char *extName){  WIN32_FIND_DATA FindFileData;  DWORD dwError;  HANDLE hFind = INVALID_HANDLE_VALUE;  char DirSpec[MAX_PATH+1];strncpy(DirSpec, pFilePath, strlen(pFilePath) + 1);  SetCurrentDirectory(pFilePath);  strncat(DirSpec, "\\*", 3);hFind = FindFirstFile(DirSpec, &FindFileData);  if (hFind == INVALID_HANDLE_VALUE){       printf ("FileName:%s    Invalid file handle. Error is %u\n", pFilePath,GetLastError());        return ;  }else{if (FindFileData.dwFileAttributes != FILE_ATTRIBUTE_DIRECTORY ){          printf("FileName:%s\n", FindFileData.cFileName); }else if(FindFileData.dwFileAttributes == FILE_ATTRIBUTE_DIRECTORY&& strcmp(FindFileData.cFileName, ".") != 0&& strcmp(FindFileData.cFileName, "..") != 0){        char Dir[MAX_PATH + 1];          strcpy(Dir, pFilePath);          strncat(Dir, "\\", 2);          strcat(Dir, FindFileData.cFileName);        findAllFile(Dir,extName);  }while (FindNextFile(hFind, &FindFileData) != 0){if (FindFileData.dwFileAttributes != FILE_ATTRIBUTE_DIRECTORY){     _chdir( pFilePath ); char *extname2 = substr(FindFileData.cFileName);     if(strcmp(extname2,extName) ==0){         printf ("\nFileName:%s ", FindFileData.cFileName); int result = remove(FindFileData.cFileName);   if(result == 0)   {        printf("Delete Result:%d",result);        count++;   }                      else{    perror("remove");  } }}  else if(FindFileData.dwFileAttributes == FILE_ATTRIBUTE_DIRECTORY && strcmp(FindFileData.cFileName, ".") != 0&& strcmp(FindFileData.cFileName, "..") != 0){  char Dir[MAX_PATH + 1];  strcpy(Dir, pFilePath);  strncat(Dir, "\\", 2);  strcat(Dir, FindFileData.cFileName); findAllFile(Dir,extName);  }}dwError = GetLastError();  FindClose(hFind);  if (dwError != ERROR_NO_MORE_FILES) {  printf ("FindNextFile error. Error is %u\n", dwError);  return;  }  }  }  //开始显示部分 void Show(char str[]){  int i,len; len = strlen(str);  for(i=0;i<len;i++)  {     printf("%c",str[i]);     sleep(100); } }  int main(void){ printf("Anleb : ");sleep(1000); char string1[] = "I am Anleb,nice to somthing!\n";Show(string1); printf("Anleb : "); sleep(1000); char string2[] = "Go,gay!\n";Show(string2);printf("Please Enter the Path:");char path[128];gets(path);while(strlen(path) == 0){ printf("Warning:The Path value is Null!\n"); printf("Please Enter the Path:"); gets(path);}if(strcmp(path,"exit") ==0)return 0;printf("Please Enter the ExtName:");char extName[10];gets(extName);while(strlen(extName) == 0){ printf("Warning:The ExtName value is Null!\n"); printf("Please Enter the ExtName:"); gets(extName);}if(strcmp(extName,"exit") ==0)return 0;findAllFile(path,extName);printf("\nDelete Count: %d\n",count); system("pause"); return 0;  }