C++的简单JSON字符串转义？

#include<iostream>
#include<string>

std::string escapeJSON(const std::string& input) {
    std::string output = input;
    output.replace(output.find_first_of("\""), 1, "\\\"");
    output.replace(output.find_first_of("\\"), 1, "\\\\");
    output.replace(output.find_first_of("/"), 1, "\\/");
    output.replace(output.find_first_of("\b"), 1, "\\b");
    output.replace(output.find_first_of("\f"), 1, "\\f");
    output.replace(output.find_first_of("\n"), 1, "\\n");
    output.replace(output.find_first_of("\r"), 1, "\\r");
    output.replace(output.find_first_of("\t"), 1, "\\t");
    return output;
}

int main() {
    std::string input = "Hello, \"World\"!\n";
    std::string output = escapeJSON(input);
    std::cout << "Escaped JSON string: "<< output<< std::endl;
    return 0;
}