各种编程语言打开文件的方法

Python

with open("log.txt") as infile:
    for line in infile:
        do_something_with(line)

C

#include <stdio.h>
main()
{
    FILE *fp;
    fp = fopen("/tmp/test.txt", "w+");
    fprintf(fp, "This is testing for fprintf ...\n");
    fputs("This is testing for fputs...\n", fp);
    fclose(fp);
}

C++

#include <iostream>
#include <fstream>
using namespace std;
int main()
{
    ofstream MyFile("filename.txt");
    MyFile << "Files can be tricky, but it is fun enough!";
    MyFile.close();
}