是否无法写一段代码将这段代码自己打印出来？
好像是个递归的问题，程序语言不限
读取源代码文件内容，原样输出即可~

            #include <fstream>    #include <iostream>    #include <string>        int main() {      std::ifstream fin(__FILE__, std::ios::in);      std::string line;      while (std::getline(fin, line)) std::cout << line << "\n";      return 0;    }    

运行结果：

            PS C:\Coding> ./PrintSelf.exe    #include <fstream>    #include <iostream>    #include <string>        int main() {      std::ifstream fin(__FILE__, std::ios::in);      std::string line;      while (std::getline(fin, line)) std::cout << line << "\n";      return 0;    }