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The method of the data and defect existing each that this paper has analyzed and transferred returning through function in C language,and to how C standardize return value of function put forward one s own view in the language.

在分析C语言中通过函数调用返回数据的方法缺陷的基础上,对C语言中如何规范函数的返回值提出解决方法。

In this paper, an approach to spacecraft returning reentry guidance is described.

本文分析研究了飞船离轨返回制动段的制导方法，提出了一种消除制动段误差对再入点状态参数影响的制动发动机综合关机方法，并对再入段的制导方法进行了分析讨论，最后进行了数值仿真分析，论证了方法的可行性。