如何修复 C++ 错误：'put_time' is not a member of 'std'

问题：

尝试编译 C++ 应用程序时，你看到类似这样的错误消息

error_put_time.txt

src/HTTPServer.cpp:12:16: error: 'put_time' is not a member of 'std'
     ss << std::put_time(std::localtime(&localTime), "%FT%H-%M-%SZ");;
                ^~~~~~~~

src/HTTPServer.cpp:12:16: error: 'put_time' is not a member of 'std'
     ss << std::put_time(std::localtime(&localTime), "%FT%H-%M-%SZ");;
                ^~~~~~~~

解决方案

在出现此错误的文件顶部，你需要添加

include_iomanip.cpp

#include <iomanip>

#include <iomanip>

iomanip 包含 std::put_time() 及其他功能。

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