專案設定
Common Language Runtime Support預設值為No Common Language Runtime Support
改選擇支援Common Language Runtime(/clr)
設定clr完成後編輯程式才會自動出現對應的提示字,否則會不認得namespace System及System::IO
1: // WriteFileDemo4.cpp : Defines the entry point for the console application.
2: //
3: 4: #include "stdafx.h"
5: using namespace System;
6: using namespace System::IO;
7: 8: int _tmain(int argc, _TCHAR* argv[])
9: {10: // 寫入檔案
11: String^ path = "test.txt";
12: StreamWriter^ sw = File::CreateText(path);13: String^ line = "我要寫入4";
14: sw->WriteLine(line); 15: sw->Close(); 16: 17: // 讀取檔案
18: StreamReader^ sr = File::OpenText(path);19: String^ s = "";
20: if( s = sr->ReadLine())
21: { 22: Console::WriteLine( s ); 23: } 24: Console::ReadLine();25: return 0;
26: }
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