std::string 拼接字符串
#include <iostream> #include <string> #include <sstream> int main() { // 方法一:123456-==- std::string a = "123"; std::string b = "456"; std::string c; c.append(a).append(b).append("-==-"); std::cout << c << std::endl; // 方法二: std::string a1 = "123"; std::stringstream c1; c1 << 456 << "-==-"; a1 += c1.str(); std::cout << a1 << std::endl; }