c++ 产生不重复独有文件名
#include <iostream>
#include <cstdio>
#include <string>
int main()
{
int pos;
std::string fileName;
std::string final;
for(int i = 0; i < 10; i++)
{
std::string name = std::tmpnam(nullptr);
pos = name.find_last_of('/');
fileName = name.substr(pos + 1);
final = fileName + ".jpg";
std::cout << final << std::endl;
}
}
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