c++ 字符分割截取

#include <iostream>
#include <string>
#include <sstream>
#include <vector>

// 函数用于按照指定分隔符分割字符串
std::vector<std::string> splitString(const std::string &s, char delim) {
    std::vector<std::string> tokens;
    std::stringstream ss(s);
    std::string token;
    while (std::getline(ss, token, delim)) {
        tokens.push_back(token);
    }
    return tokens;
}

int main() {
    std::string fullPath = "/home/dongdong/2project/0data/NWPU/config/config.yaml";
    
    // 按照 '/' 分割字符串
    std::vector<std::string> parts = splitString(fullPath, '/');

    // 获取前面的部分，组装成路径
    std::string result;
    for (int i = 0; i < parts.size() - 1; ++i) {
        result += parts[i] + '/';
    }

    // 打印结果
    std::cout << "Extracted path: " << result << std::endl;

    return 0;
}

cmake_minimum_required(VERSION 3.5)
project(PathExtraction)

# 设置 C++ 标准
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# 添加可执行文件生成规则
add_executable(PathExtraction main.cpp)