Idea2020.1.4 packages package collapse

1、 The currently created file package structure is shown in the following figure ：

 

 2、 Now you need to service2 Create a class under the package of , So you need to expand the package structure , The operation is as follows ： Label the following figure 2 Two of them √ Cancel .

 

 3、 After the cancellation , The hierarchy of the package is shown below ：

  Next, you can create other classes or interfaces under other packages ....

What a long long road! , I will go up and down .......