The following values apply only to long-running child processes that have been invoked by a long-running process through a synchronous interface.

下面这些值只用在长期运行的子过程，它们通过异步接口被长期运行的流程调用。

youdao

ECHILD -- The wait() or waitpid() function tried to wait for a child process to exit, but all children have already exited.

ECHILD：wait()或waitpid()函数尝试等待退出子进程，但所有子项都已经退出。

youdao

I am also worried about the beginning, but now Well, this is a process, and one child have to do.

我刚开始也很担心，但现在好了，这是一个过程，独生子女都这样。

youdao

I am also worried about the beginning, but now Well, this is a process, and one child have to do.

我刚开始也很担心，但现在好了，这是一个过程，独生子女都这样。

youdao