将stdout / stderr重定向到依次格式化消息并将其打印到控制台的函数的最佳方法是什么？

I want to capture all stdout and stderr messages, and parse the data and print them in my desired format. How do I do this in go?

You can use cmd.CombinedOutput or cmd.Output:

out, err := exec.Command("ls", "-al").CombinedOutput()
//or
out, err := exec.Command("ls", "-al").Output()