At present, the development of the necessary system software or tools to support object-oriented programming.
目前开发所需的系统软件或工具均支持面向对象的程序设计。
Then software development tools used in the system are introduced.
其次介绍了开发该系统的软件工具。
The second chapter is to introduce the system development models and tools;
第二章是介绍系统的开发模式和工具；
The second chapter is to introduce the system development models and tools;
第二章是介绍系统的开发模式和工具；
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