subprocess.run 阻塞
subprocess.call 阻塞
subprocess.check_call 阻塞
subprocess.check_output 阻塞
subprocess.Popen 非阻塞 .wait()方法变阻塞
subprocess.run 阻塞
subprocess.call 阻塞
subprocess.check_call 阻塞
subprocess.check_output 阻塞
subprocess.Popen 非阻塞 .wait()方法变阻塞