Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. How to run a program depends on what you start from, the type of program, and whether you want to run under the debugger.
In the simplest case, to build and run an open project in Visual Studio:. You can run a C project or. If the project contains a C file with a Main method, and its output is an executable or.
If your program code is already in a Visual Studio project, open the project. To do so, you can double-click or tap on the. After the project loads in Visual Studio, if your Visual Studio solution has more than one project, make sure to set the project with the Main method as the startup project. To set the startup project, right-click on the project name or node in Solution Explorer and choose Set as Startup Project from the context menu.
Visual Studio tries to build and run your project. At the bottom of the Visual Studio screen, the build output appears in the Output window, and any build errors appear in the Error List window. If the build succeeds, the app runs as appropriate for the type of project. Console apps run in a terminal window, Windows desktop apps start in a new desktop window, and web apps run in a browser hosted by IIS Express. If you start from a code listing, code file, or small number of files, first make sure the code is a runnable program from a trusted source.
Any app with a Main method is probably a runnable program. You can use the Console Application template to create a project to work with the app in Visual Studio. If you have a folder with many files, first check for a project or solution file. Programs that Visual Studio creates have project and solution files.
In Windows File Explorer, look for files with the. Double-click the. See Start from a Visual Studio solution or project. If the code is from another development environment, there's no project file. If you try to divide a number by zero, the console app might freeze, and then shows you what's wrong in the code editor. Sometimes the app doesn't freeze, and the debugger doesn't show a divide-by-zero error.
Instead, the app might return an unexpected nonnumeric result, such as an infinity symbol. The following code fix still applies. In program. After you replace the code, the section with the switch statement should look similar to the following screenshot:.
Now, when you divide any number by zero, the app asks for another number, and keeps asking until you provide a nonzero number. If you enter an alphabetic character when the app expects a numeric character, the app freezes. Visual Studio shows you what's wrong in the code editor. Rather than rely on the program class to handle all the code, you can divide your app into two classes: Calculator and Program.
The Calculator class handles the bulk of the calculation work, and the Program class handles the user interface and error-handling work. Follow the prompts and divide the number 42 by the number Your results should look similar to the following screenshot:.
You can now enter more equations until you choose to close the console app. There are also fewer decimal places in the results. And if you enter an incorrect character, you get an appropriate error response. Now that you've created an app, you might want to add it to a Git repository. We've got you covered. Git is the most widely used modern version control system, so whether you're a professional developer or you're learning how to code, Git can be very useful. There, you can find cheat sheets, a popular online book, and Git Basics videos.
To associate your code with Git, you start by creating a new Git repository where your code is located. Here's how:. The repository name auto-populates based on your folder location. By default, your new repository is private, which means you're the only one who can access it. Whether your repository is public or private, it's best to have a remote backup of your code stored securely on GitHub.
Even if you aren't working with a team, a remote repository makes your code available to you from any computer. You can use this icon to pull any incoming commits or push any outgoing commits. You can also choose to view these commits first.
The second icon with the pencil shows the number of uncommitted changes to your code. You can select this icon to view those changes in the Git Changes window. To learn more about how to use Git with your app, see the Visual Studio version control documentation.
In this tutorial, you made many changes to the calculator app. The app now handles computing resources more efficiently, and handles most user input errors.
Tutorial Part 2: Extend and debug your C console app. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info.
Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Create a Visual Studio project.
Create a C console app. Debug your app. Close your app. Inspect your complete code. Open Visual Studio Add a workload optional If you don't see the Console App. Open Visual Studio, and choose Create a new project in the Start window. Note If you don't see the Console Application template, select Install more tools and features. Note If you don't see the Console App template, select Install more tools and features.
ReadKey , so basically using Console Class we can read values also. When exeucting above code, in the above code Console. ReadLine reads a value from a console and prints it. We read a line from the terminal. When we hit the Enter key, the input is assigned to the name variable.
0コメント