# 查找可用串口(Windows+Linux平台)defserial_ports():""" Lists serial port names
:raises EnvironmentError:
On unsupported or unknown platforms
:returns:
A list of the serial ports available on the system
"""if sys.platform.startswith('win'):
ports =['COM%s'%(i +1)for i inrange(256)]elif sys.platform.startswith('linux')or sys.platform.startswith('cygwin'):# this excludes your current terminal "/dev/tty"
ports = glob.glob('/dev/tty[A-Za-z]*')elif sys.platform.startswith('darwin'):
ports = glob.glob('/dev/tty.*')else:raise EnvironmentError('Unsupported platform')
result =[]for port in ports:try:
s = serial.Serial(port)
s.close()
result.append(port)except(OSError, serial.SerialException):passreturn result
print(serial_ports())