串行打印，字符串和变量在同一行上

如何将字符串或单个字符后跟如“ L 55”的变量打印到串行监视器上

int Var = 55;
//Do it in 2 lines e.g.
Serial.print("L ");     // String
Serial.println(Var);    // Print Variable on same line then send a line feed

对于调试打印，您可以定义一个宏来打印变量的名称和值，如下所示：

#define PRINTLN(var) Serial.print(#var ": "); Serial.println(var)

然后您可以这样使用：

int x = 5;
PRINTLN(x);

// Prints 'x: 5'

这也很好：

#define PRINT(var) Serial.print(#var ":\t"); Serial.print(var); Serial.print('\t')
#define PRINTLN(var) Serial.print(#var ":\t"); Serial.println(var)

当像这样循环使用时

PRINT(x);
PRINT(y);
PRINTLN(z);

打印这样的输出：

x:  3   y:  0.77    z:  2
x:  3   y:  0.80    z:  2
x:  3   y:  0.83    z:  2

非常感谢你的回答。我做的 ...

#define DEBUG  //If you comment this line, the functions below are defined as blank lines.
#ifdef DEBUG    //Macros 
  #define Say(var)    Serial.print(#var"\t")   //debug print, do not need to put text in between of double quotes
  #define SayLn(var)  Serial.println(#var)  //debug print with new line
  #define VSay(var)    Serial.print(#var " =\t"); Serial.print(var);Serial.print("\t")     //variable debug print
  #define VSayLn(var)  Serial.print(#var " =\t"); Serial.println(var)  //variable debug print with new line
#else
  #define Say(...)     //now defines a blank line
  #define SayLn(...)   //now defines a blank line
  #define VSay(...)     //now defines a blank line
  #define VSayLn(...)   //now defines a blank line
#endif