这是我的代码
#include<SPI.h>
#include<Ethernet.h>
byte mac[]={0xAA, 0xAB, 0xAC,0xAD, 0xAE, 0xAF};
IPAddress ip(192, 168, 1, 86);
EthernetClient client;
byte server[]={192, 168, 1, 61};
void setup()
{
Serial.begin(9600);
delay(1000);
Ethernet.begin(mac, ip);
}
void loop()
{
if(client.connect(server, 80))
{
client.println("GET /ardunio/ardComm.php?param=ping");
client.println();
client.stop();
}
Serial.println(millis);
}
这是错误
Serverping.ino:在函数'void loop()'中: Serverping.ino:24:24:错误:调用重载'println(long unsigned int(&amp;)())'是不明确的 Serverping.ino:24:24:注意:候选人是: 在/usr/share/arduino/hardware/arduino/cores/arduino/Stream.h:26:0中包含的文件中, 来自/usr/share/arduino/hardware/arduino/cores/arduino/HardwareSerial.h:28, 来自/usr/share/arduino/hardware/arduino/cores/arduino/Arduino.h:193, 来自/usr/share/arduino/libraries/SPI/SPI.h:15, 来自Serverping.ino:1: /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:70:12:注意:size_t打印:: println(char) size_t println(char); ^ /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:70:12:注意:参数1从'long unsigned int()'到'char'没有已知的转换 /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:71:12:注意:size_t Print :: println(unsigned char,int) size_t println(unsigned char,int = DEC); ^ /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:71:12:注意:参数1从'long unsigned int()'到'unsigned char'没有已知的转换 /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:72:12:注意:size_t Print :: println(int,int) size_t println(int,int = DEC); ^ /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:72:12:注意:参数1从'long unsigned int()'到'int'没有已知的转换 /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:73:12:注意:size_t Print :: println(unsigned int,int) size_t println(unsigned int,int = DEC); ^ /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:73:12:注意:参数1从'long unsigned int()'到'unsigned int'没有已知的转换 /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:74:12:注意:size_t Print :: println(long int,int) size_t println(long,int = DEC); ^ /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:74:12:注意:参数1从'long unsigned int()'到'long int'没有已知的转换 /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:75:12:注意:size_t Print :: println(long unsigned int,int) size_t println(unsigned long,int = DEC); ^ /usr/share/arduino/hardware/arduino/cores/arduino/Print.h:75:12:注意:参数1从'long unsigned int()'到'long unsigned int'没有已知的转换
答案 0 :(得分:2)
millis
是一个功能。如果你想要调用它的结果,那么你需要调用它。
Serial.println(millis());