2 process C++上的字符串替换

string& replace (size_t pos, size_t len, const string& str);

#include <iostream>
#include <string>

int main() {
    std::string str = "Hello, World!";
    std::cout << "原始字符串：" << str << std::endl;
    
    str.replace(7, 5, "C++");
    std::cout << "替换后的字符串：" << str << std::endl;
    
    return 0;
}

原始字符串：Hello, World!
替换后的字符串：Hello, C++!

#include <iostream>
#include <string>

int main() {
    std::string str = "Hello, World!";
    std::cout << "原始字符串：" << str << std::endl;
    
    std::string target = "World";
    std::string replacement = "C++";
    
    size_t pos = str.find(target);
    while (pos != std::string::npos) {
        str.replace(pos, target.length(), replacement);
        pos = str.find(target, pos + replacement.length());
    }
    
    std::cout << "替换后的字符串：" << str << std::endl;
    
    return 0;
}

原始字符串：Hello, World!
替换后的字符串：Hello, C++!