请注意,make实际上更复杂一点.一个单位,让我们说unitA,即使unitA没有改变,也可能需要重新编译.当unitA使用另一个单元unitB,并且unitB的接口部分自上次制作或构建以来发生变化时,会发生这种情况.

documentation建造州：

Rebuilds all files in your current
project regardless of whether they
have changed. Building is useful when
you are unsure which files have
changed,or if you have changed
project or compiler options.

documentation制作状态：

Compiles only those files that have changed since the last build,as well as any files that depend on them.