C++ 类中lcd对象上的调用函数

目前我正在制作一个将自定义文本打印到LCD的类

我将lcd对象作为构造函数中的参数传递给类

显示.h

#ifndef Display_h
#define Display_h

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
#include "Arduino.h"

class Display
{
public:
  Display(LiquidCrystal_I2C *outsideLcd);

private:
 LiquidCrystal_I2C *lcd;
};

#endif

当我在类外使用LCD对象的函数时，没有问题。 我是否将对象传递给类时出错？

lcd是指针

  lcd.init();
  lcd.clear();
  lcd.print("Constructor");

上述行应按以下方式更正：

 lcd->init();
  lcd->clear();
  lcd->print("Constructor");

Display.cpp: In constructor 'Display::Display(LiquidCrystal_I2C*)':
Display.cpp:16: error: request for member 'init' in '((Display*)this)->Display::lcd', which is of non-class type 'LiquidCrystal_I2C*'
Display.cpp:17: error: request for member 'clear' in '((Display*)this)->Display::lcd', which is of non-class type 'LiquidCrystal_I2C*'
Display.cpp:18: error: request for member 'print' in '((Display*)this)->Display::lcd', which is of non-class type 'LiquidCrystal_I2C*'  

  lcd.init();
  lcd.clear();
  lcd.print("Constructor");

 lcd->init();
  lcd->clear();
  lcd->print("Constructor");