c++ 读写文件

最新推荐文章于 2025-12-11 21:01:45 发布

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#c++ #string #ios #sql

ifstream inFile1;
        inFile1.open("a.txt", ios_base::in);
        if (!inFile1.is_open())
        {
                cout<<"打开导入文件文件失败,请检查是否存在导入文件"<<endl;
                return false;
        }

        char szBuffer1[120] = "0";
        string str1;
        while (getline(inFile1,str1))
        {
                cout<<str1<<endl;
        }
        //cout<<inFile1.rdbuf()<<endl;
        inFile1.close();

写文件例子:

        string sql = "test";
        ofstream outFile;
        outFile.open(strExportFileName.c_str(), ios_base::app);
        if (!outFile.good())
        {
                cout<<"打开文件失败"<<endl;
                return false;
        }
        outFile<<sql;
        outFile.close();