c++ string 分割字符串

以下是两种C++中分割字符串的方法：

1. 使用stringstream和getline函数

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

std::vector<std::string> splitString(std::string str, char delimiter) {
    std::vector<std::string> result;
    std::stringstream ss(str);
    std::string token;
    
    while (getline(ss, token, delimiter)) {
        result.push_back(token);
    }
    
    return result;
}

int main() {
    std::string str = "This is a test";
    std::vector<std::string> strList = splitString(str, ' ');
    
    for (auto s : strList) {
        std::cout << s << " ";
    }
    std::cout << std::endl;
    
    return 0;
}

2. 使用find和substr方法

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

std::vector<std::string> splitString(std::string str, char delimiter) {
    std::vector<std::string> result;
    size_t start = 0;
    size_t end = str.find(delimiter);
    
    while (end != std::string::npos) {
        result.push_back(str.substr(start, end - start));
        start = end + 1;
        end = str.find(delimiter, start);
    }
    
    result.push_back(str.substr(start, end));
    
    return result;
}

int main() {
    std::string str = "This-is-a-test";
    std::vector<std::string> strList = splitString(str, '-');
    
    for (auto s : strList) {
        std::cout << s << " ";
    }
    std::cout << std::endl;
    
    return 0;
}