files.RedirectCout();/// INIT MESH ===unsignedshortnm,nr; nm=4;std::cout<<"MULTIGRID levels: "<< nm <<endl; nr=0;std::cout<<"MAX_REFINEMENT levels: "<< nr <<endl<<endl;inttmp=nm; nm+=nr; nr=tmp;char*infile =newchar[50];sprintf(infile,"./input/nsbenchreg.neu");//Adim...
Linux redirect the stdout to a file 1: int save_out = dup(fileno(stdout));//backup stdout 2: int out = open("cout.log", O_RDWR|O_CREAT|O_APPEND, 0600); 3: int nRet; 4: fflush(stdout); 5: dup2(out, fileno(stdout));// redirect stdout to out 8: printf("Hello world!")...
下面是完整验证代码,第一次打开文件写 5个"duwen",然后输出是为了验证cout<< file.rdbuf()可以将文件所有内容一次性全部输出,紧接着是重定向cout,然后写cout 5个 "redirection",紧接着恢复cout流,将文件内容输出到控制台,由于默认打开方式是默认out,所以第二次打开文件写时(cout)会把文件内容先清空,也就是把5...
(I need the string, I wont be printing to a file) I'm working on a piece of code that is intended to capture standard cout and cerr streams and redirect the output to anywhere I want. So what I want to do is to be able to write som...
Suppose I have a program that I've written that accepts input, ie this C++ program: #include <iostream> using namespace std; int main() { cout << "Enter something:" << endl; int x; cin >> x; cout << "You entered data" << endl; } Suppose that I have a text file,... ...
你可以用cout或cerr做这样的事情: // open a file stream ofstream out("filename"); // save cout's stream buffer streambuf *sb = cout.rdbuf(); // point cout's stream buffer to that of the open file cout.rdbuf(out.rdbuf()); // now you can print to file by writing to cout cout...
import sys sys.stdout = open('file', 'w') print 'test' 更常见的方法是在执行时使用shellredirect(在Windows和Linux上相同): $ python foo.py > file Python 3.4中有contextlib.redirect_stdout()函数 : from contextlib import redirect_stdout with open('help.txt', 'w') as f: with redirect_std...