c++ 异常 discards qualifiers 丢弃

src/feedbackservice.cpp:76: error: passing `const ps::spider::urlreceiver::entry::ConfigManager' as `this' argument of `int ps::spider::urlreceiver::entry::ConfigManager::get_int(std::string, int)' discards qualifiers

解决方案：

config_manager.h

config_manager.cpp

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原文地址：https://www.cnblogs.com/i80386/p/5030864.html