日志库spdlog使用

地址: https://github.com/gabime/spdlog

日志等级说明 : https://my.oschina.net/xsh1208/blog/194293?p=1

#include "spdlog/spdlog.h"

日志打印例子:
    spdlog::set_level(spdlog::level::info);
    spdlog::critical("Support for int");
    spdlog::error("Some error message with arg: {0}", 1);
    spdlog::warn("Easy padding in numbers like");
    spdlog::info("Positional args are {0} {1}..", "supported", "too");
    spdlog::debug("huang {} {}", "left aligned", "dasd");