【c++】输出 0000,0001,0002,0003,0004...这样的字符串

#include <iostream>
#include <iomanip>
int frameCount = ;
while(){
            stringstream buf;
            buf <<setfill('') << setw()<< frameCount;
            string num = buf.str();
            frameCount++;

}

for(int i=; i < ; i++)
{
    cout << setfill('') << setw() << i << endl;
}

参考 http://*.com/questions/2999016/print-numbers-sequentially-using-printf-with-filling-zeroes