#include\u0020 #include\u0020 #include\u0020

namespace\u0020myspace{ \u0020\u0020void\u0020cout(){ \u0020\u0020\u0020\u0020int\u0020sum\u0020=\u00200; \u0020\u0020\u0020\u0020int\u0020size\u0020=\u00200; \u0020\u0020\u0020\u0020std::string\u0020input; \u0020\u0020\u0020\u0020std::getline(std::cin,\u0020input); \u0020\u0020\u0020\u0020std::istringstream\u0020iss(input); \u0020\u0020\u0020\u0020int\u0020num; \u0020\u0020\u0020\u0020while\u0020(iss\u0020>>\u0020num){ \u0020\u0020\u0020\u0020\u0020\u0020sum\u0020+=\u0020num; \u0020\u0020\u0020\u0020\u0020\u0020size++; \u0020\u0020\u0020\u0020} \u0020\u0020\u0020\u0020double\u0020average\u0020=\u0020static_cast(sum)\u0020/\u0020size; \u0020\u0020\u0020\u0020std::cout\u0020<<\u0020sum\u0020<<\u0020std::endl; \u0020\u0020\u0020\u0020std::cout\u0020<<\u0020average\u0020<<\u0020std::endl; \u0020\u0020}

\u0020\u0020void\u0020read(){ \u0020\u0020\u0020\u0020//\u0020No\u0020need\u0020to\u0020implement\u0020this\u0020function\u0020since\u0020it\u0020is\u0020not\u0020used\u0020in\u0020the\u0020provided\u0020code. \u0020\u0020} }

C++ 命名空间实现:计算输入数字的总和与平均值

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