Function appendFile

WechatExporter/core/FileSystem.cpp:627–630

}

bool appendFile(const std::string& path, const std::string& data)
{
    return appendFile(path, reinterpret_cast<const unsigned char*>(data.c_str()), data.size());
}

bool appendFile(const std::string& path, const unsigned char* data, size_t dataLength)
{