我没有看到使用boost :: property树创建数组的方法。以下代码......
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/json_parser.hpp>
#include <iostream>
int main()
{
try {
boost::property_tree::ptree props;
props.push_back(std::make_pair("foo", "bar"));
props.push_back(std::make_pair("foo", "baz"));
boost::property_tree::write_json("prob.json", props);
} catch (const std::exception & ex) {
std::cout << ex.what() << std::endl;
}
}
......只是给了我......
{
"foo": "bar",
"foo": "baz"
}
boost :: property_tree上的文档很稀疏。如何使用boost :: property_tree?
创建JSON数组答案 0 :(得分:20)
如果你有一个子树,其唯一的节点有空键,那么它将被序列化为一个数组:
boost::property_tree::ptree array;
array.push_back(std::make_pair("", "bar"));
array.push_back(std::make_pair("", "baz"));
boost::property_tree::ptree props;
props.push_back(std::make_pair("array", array));
boost::property_tree::write_json("prob.json", props);