关于softwareserial中的例程TwoPortReceive

linkgeek

#include <SoftwareSerial.h>
SoftwareSerial portOne(10, 11);
SoftwareSerial portTwo(8, 9);

void setup()
{
Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }

  portOne.begin(9600);
  portTwo.begin(9600);
}

void loop()
{
  portOne.listen();
  Serial.println("Data from port one:");
  while (portOne.available() > 0) {
    char inByte = portOne.read();
    Serial.write(inByte);
  }
  Serial.println();

  portTwo.listen();
  Serial.println("Data from port two:");
  while (portTwo.available() > 0) {
    char inByte = portTwo.read();
    Serial.write(inByte);
  }
  Serial.println();
}
------------------------------------------------------------------------
为了帮助我理解TwoPortReceive这个程序，我又写了TwoPortSend程序，代码如下：
#include <SoftwareSerial.h>
SoftwareSerial portOne(10, 11);
SoftwareSerial portTwo(8, 9);

void setup()
{
Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }

  portOne.begin(9600);
  portTwo.begin(9600);
}

void loop()
{
  portOne.println("1");
  portTwo.println("2");
}
-----------------------------------------------------------------------------
将这两段程序分别烧录到两块arduino uno主板上，烧录有TwoPortReceive程序的arduino主板连接至电脑，烧录有TwoPortSend程序的arduino主板连接至烧录有TwoPortReceive程序的arduino主板，结果发现串口监视器显示一片乱码。将TwoPortReceive程序去掉有关portOne或portTwo的代码，串口监视器正常显示portTwo或portOne发来的信息。
请问我如何既能收portone又能收porttwo的信息？