嵌套 的中文句子和英文句子

一种或一组命令，根据前面的命令或者相关联命令的求值结果，有条件地执行。嵌套是分支的一种结构形式。

A command or group of commands whose execution is conditional, based on the evaluation of a preceding or associated command. Nesting is a structured form of branching.