C++学习(七):C++生成日期+流水号(20190807000一、20190807000二、201908070003)的uid

#include <iostream> #include <string> std::string haha () { char buffer[80]; std::string s, num_tmp, date; s = "20190807"; static std::string a = ""; static int uid_number = 0; if (s == a) {
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