Basic Concepts about Development Environment Test Environment Build Environment

Development environment: The development environment is a server specially used by programmers for development, and the configuration can be arbitrary. For the convenience of development and debugging, all error reports are generally opened.
Test environment: generally clone a configuration of the production environment. If a program does not work properly in the test environment, it must not be released to the production machine.
Production environment: It refers to the official provision of external services. Generally, the error report will be turned off and the error log will be turned on.
    The three environments can also be said to be the three stages of system development: development -> testing -> online, in which the production environment is usually referred to as the real environment.