C ++如何将char和integer附加到字符串

Question

如何在C ++编程中将char和integer附加到字符串

例如，

int value_of_int = 100;
char value_of_char[20] = "HELLO";
string result_line;

result_line << value_of_int;
result_line << value_of_char;

vector<string> result_set;
result_set.push_back(result_line);

int和char的值将被更改，并希望保存vector<string>.

Answer 1

您可以使用ostringstream：

int value_of_int = 100;
char value_of_char[20] = "HELLO";
std::ostringstream result_line; // #include <sstream>

result_line << value_of_int << value_of_char;

vector<string> result_set;
result_set.push_back(result_line.str());