title: How to switch the local version of .net core？
body: <p>I downloaded the VS2022 for mac version，It seems to install the .net6 version of the environment for me by default, and I installed a 3.1 version myself. The local environment is as follows:
  <a href="https://i.stack.imgur.com/tKJBd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tKJBd.png" alt="enter image description here" /></a></p>
  <p>How do I switch the default .net6 version to the 3.1 version？</p>