[C++] 如何将两个constant string 填入vector?

```如图所示，for里面的push代码该怎么写才能将type和describe填入items?

for (...)
{
char buf[100];
sprintf(buf, "%s,%s,%d", type.c_str(), describe.c_str(), 1);
string s = buf;
item.push_back(s);
}