I am using the phpstudy-pro integrator. I am learning TP6. This problem also occurred before. I deleted all those projects in the integrator. There is only one tp6 project in it. The problem is: when I enter in the address bar When localhost is used, it directly enters the TP6 project. When I enter localhost/index.php, it prompts a path error. Then I pull the .php document directly into the browser, and the source code is displayed,