Generally speaking, it is composed of 3 stages, that is, software plan, software development and software maintenance.

一般说来，它由软件规划、软件开发和软件维护三个阶段组成。

youdao

Generally speaking, it is composed of 3 stages, that is, software plan, software development and software maintenance.

一般说来，它由软件规划、软件开发和软件维护三个阶段组成。

youdao