【arduino】请教各位大神

#include <Servo.h>
int curtain_state=1;
//创建两个舵机控制对象
Servo myservo;
Servo myserv1;
//函数定义
int zhengzhuan(void) //正转
{ myservo.write(0);
myserv1.write(180);
//Serial.println( myservo.read());
}
int fanzhuan(void) //反转
{ myservo.write(180);
myserv1.write(0);
//Serial.println( myservo.read());
}int jingzhi(void) //静止
{ myservo.write(90);
myserv1.write(90);
}
//ardunio定义串口或引脚
void setup() {
myservo.attach(9); //舵机1由arduino第九脚控制
myserv1.attach(10); //舵机2由arduino第十脚控制
Serial.begin(9600);
}
void loop(){
zhengzhuan();
delay(1500);
fanzhuan();
delay(1500);
jingzhi();
delay(1000);
}

最后加while（1）;