c - 使用 strtok 解析字符串数组

Question

如何更改此代码，以便它解析我在 COM 窗口的输入字段中输入的任何内容。

void setup()
{
   Serial.begin(9600);     // opens serial port, sets data rate to 9600 bps
   Serial.println("starting");

}

void loop()
{
  char stringToParse[] = "this,is,the,string,we'll,parse";
  const char *delim  = ",";   //a comma is the delimiter

  char *firstItem;
  char *secondItem;
  char *thirdItem;
  char *fourthItem;
  char *fifthItem;
  char *sixthItem;
  char *seventhItem;

  firstItem = strtok(stringToParse,delim);
  secondItem = strtok(NULL,delim);
  thirdItem = strtok(NULL,delim);
  fourthItem = strtok(NULL,delim);
  fifthItem = strtok(NULL,delim);
  sixthItem = strtok(NULL,delim);
  seventhItem =strtok(NULL,delim);

  Serial.print ("First item in string: ");
  Serial.println(firstItem);
  Serial.print ("Second item in string: ");
  Serial.println(secondItem);
  Serial.print ("Third item in string: ");
  Serial.println(thirdItem);
  Serial.print ("Fourth item in string: ");
  Serial.println(fourthItem);
  Serial.print ("Fifth item in string: ");
  Serial.println(fifthItem);
  Serial.print ("Sixth item in string: ");
  Serial.println(sixthItem);

  Serial.print ("seventh item in string: ");
  Serial.println(seventhItem);

  delay (5000); 
}

例如我输入一、二、三、四它输出字符串中的第一项:一个字符串中的第二项:两个字符串中的第三项:三字符串中的第四项:四

Answer 1

这适用于任何输入字符串:

char * item = strtok (stringToParse, delim);
while (item != NULL)
{
  Serial.println(item);
  item = strtok (NULL, delim);
}