One 、 Preface

We are using postman When testing the interface , A project often has multiple environments （ test 、 Formal etc ）, The general environment of the request is different It's just ip Different from port , If only the environment is different, create a new request , Then it will be more troublesome . At this time, we can define multiple environment variables , Reference in the interface address .

Two 、 Create environment variables

1. Click on postman The Edit button in the upper right corner （ The red box in the upper right corner of the figure below ）, choice add, Fill in the name of the environment , Variable name , The corresponding variable value . Multiple environments , Just create multiple environments

Enter the variable name , The corresponding variable value , Click save ：

You can right-click to modify the name of the environment ：

Or add an environment in the following way ：

2. Add after completion , We can do that Environment Selection box , Choose our environment ：

3. After selecting the environment variable , We can reference the variables in this environment , The reference method is ：{ { Variable name }}

For some general parameters , We can all use this method to set references , It can be easily used by us