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        错误 C2065:“cout":未声明的标识符

        时间:2023-05-23
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                  本文介绍了错误 C2065:“cout":未声明的标识符的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

                  问题描述

                  限时送ChatGPT账号..

                  我正在处理我的编程任务的驱动程序"部分,但我不断收到这个荒谬的错误:

                  I am working on the 'driver' part of my programing assignment and i keep getting this absurd error:

                  错误 C2065:'cout':未声明的标识符

                  error C2065: 'cout' : undeclared identifier

                  我什至尝试过使用 std::cout 但我收到另一个错误消息:IntelliSense: namespace "std" has no member "cout" 当我有声明 using namespace std,包括 iostream + 我什至尝试使用 ostream

                  I have even tried using the std::cout but i get another error that says: IntelliSense: namespace "std" has no member "cout" when i have declared using namespace std, included iostream + i even tried to use ostream

                  我知道这是一个标准的菜鸟问题,但这让我很难过,而且我是个新手(意思是:我以前编程过......)

                  I know it's a standard noob question but this has stumped me and I'm a novice (meaning: I've programed before...)

                  #include <iostream>
                  using namespace std;
                  
                  int main () {
                      cout << "hey" << endl;
                   return 0;
                  }
                  

                  我使用的是 Visual Studio 2010 并运行 Windows 7.所有 .h 文件都有使用命名空间 std"并包括 iostream 和 ostream.

                  I'm using Visual Studio 2010 and running Windows 7. All of the .h files have "using namespace std" and include iostream and ostream.

                  推荐答案

                  在 Visual Studio 中,您必须 #include "stdafx.h" 并且是 cpp 文件的第一个包含. 例如:

                  In Visual Studio you must #include "stdafx.h" and be the first include of the cpp file. For instance:

                  这些不起作用.

                  #include <iostream>
                  using namespace std;
                  int main () {
                      cout << "hey" << endl;
                      return 0;
                  }
                  
                  
                  
                  
                  #include <iostream>
                  #include "stdafx.h"
                  using namespace std;
                  int main () {
                      cout << "hey" << endl;
                      return 0;
                  }
                  

                  这就行了.

                  #include "stdafx.h"
                  #include <iostream>
                  using namespace std;
                  int main () {
                      cout << "hey" << endl;
                      return 0;
                  }
                  

                  这里有一个关于 stdafx.h 标头功能的很好的答案.

                  这篇关于错误 C2065:“cout":未声明的标识符的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持html5模板网!

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