查看EEPROM:read()的源代码

:[[EEPROM库|EEPROM]]

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<font color="olivedrab" size="+2">'''read()'''</font>

<font color="orange" size="+1">'''描述'''</font>

Reads a byte from the EEPROM. Locations that have never been written to have the value of 255.

<font color="orange" size="+1">'''Syntax'''</font>

EEPROM.read(address)

<font color="orange" size="+1">'''Parameters'''</font>

address: the location to read from, starting from 0 (int)

<font color="orange" size="+1">'''Returns'''</font>

the value stored in that location (byte)

<font color="orange" size="+1">'''Example'''</font>

<pre style="color:dimgray">
#include <EEPROM.h>

int a = 0;
int value;

void setup()
{
  Serial.begin(9600);
}

void loop()
{
  value = EEPROM.read(a);

  Serial.print(a);
  Serial.print("\t");
  Serial.print(value);
  Serial.println();

  a = a + 1;

  if (a == 512)
    a = 0;

  delay(500);
}

</pre>

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