Ç编译错误：数字常量前程序中的流浪'\\ 200'和预期'）' [英] C compile errors: stray '\200' in program and expected ')' before numeric constant

问题描述

我复制了这个程序，我有与无效downFrequency功能（我认为）的麻烦。
这是Arduino的乌诺。以下是编译器错误：
编译MY_dds'为'Arduino的乌诺

  MY_dds.ino：程序流浪'\\ 342'
MY_dds.ino：流浪'\\ 200'计划​​中
MY_dds.ino：流浪'\\ 223'计划中
MY_dds.ino：流浪'\\ 342'计划中
MY_dds.ino：流浪'\\ 200'计划​​中
MY_dds.ino：流浪'\\ 223'计划中
MY_dds.ino：流浪'\\ 342'计划中
MY_dds.ino：流浪'\\ 200'计划​​中
MY_dds.ino：流浪'\\ 223'计划中
MY_dds.ino：流浪'\\ 342'计划中
MY_dds.ino：流浪'\\ 200'计划​​中
MY_dds.ino：流浪'\\ 223'计划中
MY_dds.ino：流浪'\\ 342'计划中
MY_dds.ino：流浪'\\ 200'计划​​中
MY_dds.ino：流浪'\\ 223'计划中
MY_dds.ino：流浪'\\ 342'计划中
MY_dds.ino：流浪'\\ 200'计划​​中
MY_dds.ino：流浪'\\ 223'计划中
MY_dds.ino：流浪'\\ 342'计划中
MY_dds.ino：流浪'\\ 200'计划​​中
MY_dds.ino：流浪'\\ 223'计划中
MY_dds.ino：流浪'\\ 342'计划中
MY_dds.ino：流浪'\\ 200'计划​​中
MY_dds.ino：流浪'\\ 223'计划中
MY_dds.ino：流浪'\\ 342'计划中
MY_dds.ino：流浪'\\ 200'计划​​中
MY_dds.ino：流浪'\\ 223'计划中
MY_dds.ino：在函数'无效downFrequency（）：
MY_dds.ino：预期`）'数字常量前
MY_dds.ino：预期`）'数字常量前
MY_dds.ino：预期`）'数字常量前
MY_dds.ino：预期`）'数字常量前
MY_dds.ino：预期`）'数字常量前
MY_dds.ino：预期`）'数字常量前
MY_dds.ino：预期`）'数字常量前
MY_dds.ino：预期`）'数字常量前
编译错误
 

下面是程序：

 的#include＆LT;＆stdio.h中GT;
＃包括LT＆;＆dds.h GT;
＃包括LT＆;＆LiquidCrystal.h GT;＃定义RESET 13
＃定义data_pin 12
＃定义load_pin A5
＃定义clock_pin A4
＃定义clock_hz 120000000LL
＃定义calibrationValue -0.0400000 //这是我们改变更准确地校准我们的特定芯片的值
＃定义buttonPin A0//芯片，data_pin，load_pin，clock_pin，clock_hz
DDS ddschip（DDS9850，data_pin，load_pin，clock_pin，clock_hz）; //设置我的DDS了120MHz的板载水晶
LiquidCrystal液晶（8,9，4，5，6，7）;//一些变量在我们的程序中使用
长toFrequency = 14070000;
长currentFrequency;
长maxFrequency = 40000000;
长minFrequency = 0;
INT incrementNumber = 6;
INT maxprogramnumber = 6; //别忘了这里增加了菜单的数字！
INT programnumber = 1;无效设置（）{
Serial.begin（9600）;
Serial.println（开始安装）;
//设置列和行的LCD的数量：
lcd.begin（16，2）;
lcd.clear（）;
lcd.setCursor（0，0）;
lcd.print（T.Robb V0.1b）; //打印一个小消息
lcd.setCursor（0，1）;
lcd.print（DDS正弦波）;
延迟（2000）;
//设置引脚
pinMode（RESET，OUTPUT）;
pinMode（data_pin，OUTPUT）;
pinMode（load_pin，OUTPUT）;
pinMode（clock_pin，OUTPUT）;
pinMode（buttonPin，输入）;
digitalWrite（buttonPin，HIGH）;ddschip.calibrate（calibrationValue）; //这是我们改变更准确地校准我们的特定芯片的值
ddschip.setfrequency（toFrequency）;
lcd.clear（）;}无效循环（）
{
如果（toFrequency＆GT = maxFrequency）{（toFrequency = maxFrequency）;}
如果（toFrequency＆下; = minFrequency）{（toFrequency = minFrequency）;}
ddschip.setfrequency（toFrequency）;
currentFrequency = toFrequency;开关（incrementNumber）{情况下0：
Serial.println（递增量为1Hz）;
lcd.setCursor（0，0）;
lcd.print（更改到1Hz的）;
打破;情况1：
Serial.println（递增量为10Hz）;
lcd.setCursor（0，0）;
lcd.print（更改到10Hz的）;
打破;案例2：
Serial.println（增量金额为100Hz）;
lcd.setCursor（0，0）;
lcd.print（更改到100Hz的）;
打破;案例3：
Serial.println（递增量为1 000hz）;
lcd.setCursor（0，0）;
lcd.print（改变由1kHz时）;
打破;情况4：
Serial.println（递增量为10 000hz）;
lcd.setCursor（0，0）;
lcd.print（更改到10kHz的）;
打破;情况5：
Serial.println（递增量为100 000hz）;
lcd.setCursor（0，0）;
lcd.print（更改到100kHz的）;
打破;情况6：
Serial.println（增量量为1 000 000hz）;
lcd.setCursor（0，0）;
lcd.print（更改到1Mhz为）;
打破;默认：
Serial.println（增量金额为100Hz）;
lcd.setCursor（0，0）;
lcd.print（更改到100Hz的）;
打破;
}lcd.setCursor（0，1）;
lcd.print（频率​​是）; //打印液晶
lcd.setCursor（8，1）;
lcd.print（currentFrequency）;Serial.println（incrementNumber）; //临时用于调试删除我Serial.print（当前频率设置为：）;
Serial.println（currentFrequency）;而（（analogRead（buttonPin））＆GT; = 1000）{} //什么都不做，而没有任何按键pressed冷静下来
延迟（5）;
如果（analogRead（buttonPin）＆GT; = 100安培;＆安培; analogRead（buttonPin）LT = 200）{//我们已经推高了
upFrequency（）;
延迟（300）;
}如果（analogRead（buttonPin）＆GT; = 200安培;＆安培; analogRead（buttonPin）LT = 400）{//我们下推
downFrequency（）;
延迟（300）;
}如果（（analogRead（buttonPin））≤; = 50）{//我们已经向右推
incrementNumber ++;
延迟（300）;
}如果（analogRead（buttonPin）＆GT; = 400安培;＆安培; analogRead（buttonPin）LT = 600）{//我们左推
incrementNumber-;
延迟（300）;
}如果（incrementNumber→6）{incrementNumber = 0;} //这是那里的菜单绕着与周围
如果（incrementNumber℃，）{incrementNumber = 6;}延迟（100）;
lcd.clear（）;}
无效upFrequency（）
{
Serial.println（涨频率）;
开关（incrementNumber）{情况下0：
toFrequency =（toFrequency + 1）;
打破;情况1：
toFrequency =（toFrequency + 10）;
打破;案例2：
toFrequency =（toFrequency + 100）;
打破;案例3：
toFrequency =（toFrequency + 1000）;
打破;情况4：
toFrequency =（toFrequency + 10000）;
打破;情况5：
toFrequency =（toFrequency + 100000）;
打破;
情况6：
toFrequency =（toFrequency + 1000000）;
打破;默认：
toFrequency =（toFrequency + 10）;
打破;
}}
无效downFrequency（）
{Serial.println（下乡变频）;
开关（incrementNumber）{情况下0：
toFrequency =（toFrequency  -  1）;
打破;情况1：
toFrequency =（toFrequency  -  10）;
打破;案例2：
toFrequency =（toFrequency  -  100）;
打破;案例3：
toFrequency =（toFrequency  -  1000）;
打破;情况4：
toFrequency =（toFrequency  -  10000）;
打破;情况5：
toFrequency =（toFrequency  -  100000）;
打破;情况6：
 toFrequency =（toFrequency  -  1000000）;
 打破;默认：
 toFrequency =（toFrequency  -  10）;
 打破;
 }
}
 

解决方案

您已经莫名其妙地结束了与短划线字符，而不是正常的减号，在 downFrequency 功能。

请确保您使用文本编辑器编辑，而不是一个文字处理器;并为每个这些

  toFrequency =（toFrequency  -  1）;
                           ^
 

删除标记字符，并重新输入作为一个正常的减号。

（如果你有兴趣在血淋淋的细节，破折号字统一$ C $ç2013 ，连接$ C $光盘UTF-8作为八进制三个字节值324200223，这就是为什么你在错误信息看那些数字。）

I copied this program and am having trouble with the void downFrequency function (I think). This is for Arduino Uno. Here are the compiler errors: Compiling 'MY_dds' for 'Arduino Uno'

MY_dds.ino : stray '\342' in program
MY_dds.ino : stray '\200' in program
MY_dds.ino : stray '\223' in program
MY_dds.ino : stray '\342' in program
MY_dds.ino : stray '\200' in program
MY_dds.ino : stray '\223' in program
MY_dds.ino : stray '\342' in program
MY_dds.ino : stray '\200' in program
MY_dds.ino : stray '\223' in program
MY_dds.ino : stray '\342' in program
MY_dds.ino : stray '\200' in program
MY_dds.ino : stray '\223' in program
MY_dds.ino : stray '\342' in program
MY_dds.ino : stray '\200' in program
MY_dds.ino : stray '\223' in program
MY_dds.ino : stray '\342' in program
MY_dds.ino : stray '\200' in program
MY_dds.ino : stray '\223' in program
MY_dds.ino : stray '\342' in program
MY_dds.ino : stray '\200' in program
MY_dds.ino : stray '\223' in program
MY_dds.ino : stray '\342' in program
MY_dds.ino : stray '\200' in program
MY_dds.ino : stray '\223' in program
MY_dds.ino : stray '\342' in program
MY_dds.ino : stray '\200' in program
MY_dds.ino : stray '\223' in program
MY_dds.ino : : In function 'void downFrequency()':
MY_dds.ino : expected `)' before numeric constant
MY_dds.ino : expected `)' before numeric constant
MY_dds.ino : expected `)' before numeric constant
MY_dds.ino : expected `)' before numeric constant
MY_dds.ino : expected `)' before numeric constant
MY_dds.ino : expected `)' before numeric constant
MY_dds.ino : expected `)' before numeric constant
MY_dds.ino : expected `)' before numeric constant
Error compiling

Here is the program:

#include <stdio.h>
#include <dds.h>
#include <LiquidCrystal.h>

#define RESET 13
#define data_pin 12
#define load_pin A5
#define clock_pin A4
#define clock_hz 120000000LL
#define calibrationValue -0.0400000 // this is a value we change to calibrate our particular chip more accurately
#define buttonPin A0

// chip, data_pin, load_pin, clock_pin, clock_hz
dds ddschip(DDS9850, data_pin, load_pin, clock_pin, clock_hz); // set my dds up with 120mhz onboard crystal
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

// some variables to use in our program
long toFrequency = 14070000;
long currentFrequency;
long maxFrequency = 40000000;
long minFrequency = 0;
int incrementNumber = 6;
int maxprogramnumber = 6; // don't forget to increase the menu numbers here!!
int programnumber = 1;

void setup()

{
Serial.begin(9600);
Serial.println("Beginning Setup");
// set up the LCD’s number of columns and rows:
lcd.begin(16, 2);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("T.Robb V0.1b "); //Print a little message
lcd.setCursor(0, 1);
lcd.print(" DDS Sine wave ");
delay(2000);
// setup pins
pinMode(RESET, OUTPUT);
pinMode(data_pin, OUTPUT);
pinMode(load_pin, OUTPUT);
pinMode(clock_pin, OUTPUT);
pinMode(buttonPin, INPUT);
digitalWrite(buttonPin, HIGH);

ddschip.calibrate(calibrationValue); // this is a value we change to calibrate our particular chip more accurately
ddschip.setfrequency(toFrequency);
lcd.clear();

}

void loop()
{
if(toFrequency >= maxFrequency){(toFrequency = maxFrequency);}
if(toFrequency <= minFrequency){(toFrequency = minFrequency);}
ddschip.setfrequency(toFrequency);
currentFrequency = toFrequency;

switch(incrementNumber){

case 0:
Serial.println("increment amount is 1hz");
lcd.setCursor(0, 0);
lcd.print("Change By 1hz");
break;

case 1:
Serial.println("increment amount is 10hz");
lcd.setCursor(0, 0);
lcd.print("Change By 10hz ");
break;

case 2:
Serial.println("increment amount is 100hz");
lcd.setCursor(0, 0);
lcd.print("Change By 100hz ");
break;

case 3:
Serial.println("increment amount is 1 000hz");
lcd.setCursor(0, 0);
lcd.print("Change By 1khz");
break;

case 4:
Serial.println("increment amount is 10 000hz");
lcd.setCursor(0, 0);
lcd.print("Change By 10khz");
break;

case 5:
Serial.println("increment amount is 100 000hz");
lcd.setCursor(0, 0);
lcd.print("Change By 100khz");
break;

case 6:
Serial.println("increment amount is 1 000 000hz");
lcd.setCursor(0, 0);
lcd.print("Change By 1Mhz");
break;

default:
Serial.println("increment amount is 100hz");
lcd.setCursor(0, 0);
lcd.print("Change By 100hz ");
break;
}

lcd.setCursor(0, 1);
lcd.print("Freq is "); //Print to lcd
lcd.setCursor(8, 1);
lcd.print(currentFrequency);

Serial.println(incrementNumber); // temporary for debugging delete me

Serial.print("Current Frequency is set to :");
Serial.println(currentFrequency);

while((analogRead(buttonPin))>=1000){} // do nothing while no buttons pressed to chill out
delay(5);
if(analogRead(buttonPin)>=100 && analogRead(buttonPin)<=200){ // we have pushed up
upFrequency();
delay(300);
}

if(analogRead(buttonPin)>=200 && analogRead(buttonPin)<=400){ // we have pushed down
downFrequency();
delay(300);
}

if((analogRead(buttonPin))<=50){ // we have pushed right
incrementNumber++;
delay(300);
}

if(analogRead(buttonPin)>=400 && analogRead(buttonPin)<=600){ // we have pushed left
incrementNumber–;
delay(300);
}

if(incrementNumber > 6){incrementNumber = 0;} // this is where the menu goes around  and around
if(incrementNumber < 0){incrementNumber = 6;}

delay(100);
lcd.clear();

}
void upFrequency()
{
Serial.println("Going UP Frequency");
switch(incrementNumber){

case 0:
toFrequency = (toFrequency + 1);
break;

case 1:
toFrequency = (toFrequency + 10);
break;

case 2:
toFrequency = (toFrequency + 100);
break;

case 3:
toFrequency = (toFrequency + 1000);
break;

case 4:
toFrequency = (toFrequency + 10000);
break;

case 5:
toFrequency = (toFrequency + 100000);
break;
case 6:
toFrequency = (toFrequency + 1000000);
break;

default:
toFrequency = (toFrequency + 10);
break;
}

}
void downFrequency()
{

Serial.println("Going DOWN Frequency");
switch(incrementNumber){

case 0:
toFrequency = (toFrequency – 1);
break;

case 1:
toFrequency = (toFrequency – 10);
break;

case 2:
toFrequency = (toFrequency – 100);
break;

case 3:
toFrequency = (toFrequency – 1000);
break;

case 4:
toFrequency = (toFrequency – 10000);
break;

case 5:
toFrequency = (toFrequency – 100000);
break;

case 6: 
 toFrequency = (toFrequency – 1000000);
 break;

default:
 toFrequency = (toFrequency – 10);
 break;
 }
}

解决方案

You've somehow ended up with "en dash" characters, rather than normal minus signs, in the downFrequency function.

Make sure you're editing using a text editor, not a word processor; and for each of these:

toFrequency = (toFrequency – 1);
                           ^

delete the marked character, and retype as a normal minus sign.

(If you're interested in the gory details, the "dash" character is Unicode 2013, encoded in UTF-8 as three bytes with octal values 324,200,223, which is why you see those numbers in the error messages.)

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