我无法在 Visual Studio 中运行基本的 C++ 程序“Hello World”

Question

I'm learning C++ as first programming language and I can't figure out how to run Hello World program. I was googling for solution but I did not find any.

#include <iostream>
using namespace std;

int main() {

    cout << "Hello, World!";
    return 0;
}

Unable to start program 'C:\Users/thom/Desktop/C++/Visual/firstproject/Debug/Hello World.exe'. The system cannot find the file specified.

Answer 1

Try Build -> Rebuild Solution, find the executable in the path shown at the output to run it. You can also try pressing Ctrl+F5 to build and run

Answer 2

If you create a.cpp file in File > New > File > C++ File?

If so, the path is not included in the project directory, causing the compiler to fail to find the file.

The correct way is to create a cpp file in the project directory under Explorer.As shown below：

You can modify the name of the.cpp, and don't modify the default location.

Now you can try to build and run the executable.

Answer 3

I just run your code on VS2019 and it worked.