C++读取系统某路径下某后缀的文件全路径

从文件夹路径path下读取后缀格式为format的文件,保存其全路径到fileFullpath中

功能函数

void saveFilesFullpathFromFolderInFormat(string path,vector<string>& fileFullpath,string format){
    _finddata_t fileInfo;
    string s;
    const char* filePath = s.assign(path).append("\\*").append(format).c_str();  //将string转化为const char*类型
    intptr_t fileHandle = _findfirst(filePath, &fileInfo); //读取第一个文件信息 文件句柄类型为long会出现不兼容[Win10平台用long声明文件句柄会crash]
    string f;
    if (fileHandle == -1){
        cout << "error\n";
    }
    else{
        f = path + string("\\") + string(fileInfo.name);
        fileFullpath.push_back(f);
    }
    while (_findnext(fileHandle, &fileInfo)==0){
        f = path+string("\\")+string(fileInfo.name);
        fileFullpath.push_back(f);
    }
    _findclose(fileHandle);
}

测试代码

#include
#include
#include
using namespace std;

int main(){
    string s1 = "C:\\Users\\chaoy\\Desktop\\mitdb";
    string s2 = ".mat";
    vector<string> files;
    saveFilesFullpathFromFolderInFormat(s1,files,s2);
    int s = files.size();
    for (int i = 0; i < s; i++){
        cout << i+1 <<"  "<"\n";
    }
    return 0;
}

文件路径

输出结果