Arduino millis()函數(shù)

此函數(shù)用于返回Arduino板開(kāi)始運(yùn)行當(dāng)前程序時(shí)的毫秒數(shù)。這個(gè)數(shù)字在大約50天后溢出，即回到零。

millis()函數(shù)語(yǔ)法

millis () ;

此函數(shù)從程序開(kāi)始處返回毫秒。

例子

unsigned long time; void setup() { 
   Serial.begin(9600); 
} 

void loop() { 
   Serial.print("Time:"); time = millis();
   //prints time since program started
   Serial.println(time); 
   // wait a second so as not to send massive amounts of data
   delay(1000); 
}