C/C++ 遍历Linux目录下所有文件并已树的形式打印：

#include
#include
#include
#include
#include
#include

using namespace std;
void List(const char *path, int level) {
struct dirent* ent = NULL;
DIR *pDir;
pDir = opendir(path);
if (pDir == NULL) {
//被当作目录，但是执行opendir后发现又不是目录，比如软链接就会发生这样的情况。
return;
}
while (NULL != (ent = readdir(pDir))) {
if (ent->d_type == 8) {
//file
for (int i = 0; i < level; i++) {
printf("-");
}
printf("%s\n", ent->d_name);
} else {
if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) {
continue;
}
//directory
std::string _path(path);
std::string _dirName(ent->d_name);
std::string fullDirPath = _path + "/" + _dirName;
for (int i = 0; i < level; i++) {
printf(" ");
}
printf("%s/\n", ent->d_name);
List(fullDirPath.c_str(), level + 1);
}
}
}
int main(int argc, char *argv[]) {
List("/home/yangchao", 0);
return 0;
}