error C187: not an lvalue不知道咋改，很急，求解

niubility · 发表于 2023-3-15 14:25

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电子琴2.C(163): error C187: not an lvalue
主程序第一行，不明白为什么会错，咋改，很急，求解

#include                //调用单片机头文件
#define uchar unsigned char  //无符号字符型宏定义       变量范围0~255
#define uint  unsigned int       //无符号整型宏定义       变量范围0~65535

***it beep  = P1^5;          //蜂鸣器定义

***it K1=P3^2;//音乐播放按键
uchar flag_en = 0;          //开始放歌
uchar flag_i = 0;

uchar num=0;//初始化num，用于控制数1码管显示的字符

//数码管段选定义    0 1 2 3 4          5       6       7       8          9
uchar code smg_du[]={0x28,0xee,0x34,0xa4,0xe2,0xa1,0x21,0xec,0x20,0xa0,
//                                        A       B       C       D          E F       不显示
                                       0x60,0x23,0x39,0x26,0x31,0x71,0xbf};       //断码


uchar m,n;
uchar code T[49][2]={{0,0},
{0xF8,0x8B},{0xF8,0xF2},{0xF9,0x5B},{0xF9,0xB7},{0xFA,0x14},{0xFA,0x66},{0xFA,0xB9},{0xFB,0x03},
{0xFB,0x4A},{0xFB,0x8F},{0xFB,0xCF},{0xFC,0x0B},{0xFC,0x43},{0xFC,0x78},{0xFC,0xAB},{0xFC,0xDB},
{0xFD,0x08},{0xFD,0x33},{0xFD,0x5B},{0xFD,0x81},{0xFD,0xA5},{0xFD,0xC7},{0xFD,0xE7},{0xFE,0x05},
{0xFE,0x21},{0xFE,0x3C},{0xFE,0x55},{0xFE,0x6D},{0xFE,0x84},{0xFE,0x99},{0xFE,0xAD},{0xFE,0xC0},
{0xFE,0x02},{0xFE,0xE3},{0xFE,0xF3},{0xFF,0x02},{0xFF,0x10},{0xFF,0x1D},{0xFF,0x2A},{0xFF,0x36},
{0xFF,0x42},{0xFF,0x4C},{0xFF,0x56},{0xFF,0x60},{0xFF,0x69},{0xFF,0x71},{0xFF,0x79},{0xFF,0x81}
};
uchar code music1[][2]={{0,4},          //两只蝴蝶
{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,16},{16,4},{19,4},{21,8},{21,4},{23,4},{21,4},{19,4},{16,4},{19,4},{14,24},
{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,24},{16,4},{19,4},{21,8},{21,4},{23,4},{21,4},{19,4},{16,4},{19,4},{21,24},

{23,4},{21,4},{23,16},{23,4},{21,4},{23,4},{21,4},{19,16},{16,4},{19,4},{21,8},{21,4},{23,4},{21,4},{19,4},{16,4},{19,4},{14,24},
{23,4},{26,4},{26,16},{26,4},{28,4},{26,4},{23,24},{21,4},{23,4},{21,8},{21,4},{23,4},{21,4},{19,4},{16,4},{16,2},{19,2},{19,24},{0,20},
{26,4},{26,4},{28,4},{31,4},{30,4},{30,4},{28,4},{23,4},{21,4},{21,4},{23,16},{0,4},{23,4},{23,4},{26,4},{28,8},{28,12},{16,4},{23,4},{21,4},
{21,24},{23,4},{26,4},{26,4},{23,4},{26,8},{0,4},{31,8},{30,4},{28,4},{30,4},{23,8},{0,4},{28,4},{28,4},{30,4},{28,4},{26,4},{23,4},{21,8},{23,4},{21,4},{23,4},{26,16},
{0xFF,0xFF}};

uchar code music2[][2]={{0,4},       //生日快乐
{17,6},{17,2},{19,8},{17,8},{22,8},{21,16},
{17,6},{17,2},{19,8},{17,8},{24,8},{22,16},{17,6},{17,2},{29,8},{26,8},{22,8},{21,8},{19,8},{27,6},{27,2},{26,8},{22,8},{24,8},{22,16},
{0xFF,0xFF}};

uchar code music3[][2]={{0,4},       //爱情买卖
{22,4},{22,4},{17,4},{15,4},{15,4},{17,12},
{15,4},{15,2},{17,2},{15,4},{13,4},{13,4},{15,12},{0,4},
{20,4},{20,4},{20,4},{17,4},{20,4},{20,4},{20,4},{17,4},
{22,4},{17,4},{17,4},{15,4},{15,4},{17,12},
{22,4},{22,4},{17,4},{15,4},{15,4},{17,12},
{15,4},{15,2},{17,2},{15,4},{13,4},{13,4},{15,12},
{20,4},{20,4},{20,2},{17,2},{17,4},{20,4},{20,4},{20,2},{17,2},{17,2},{17,2},
{24,4},{20,4},{20,2},{17,2},{17,4},{20,4},{22,12},
{17,4},{22,4},{25,4},{25,4},{17,4},{22,4},{25,8},
{24,4},{22,2},{24,2},{22,4},{20,4},{15,4},{17,12},
{15,4},{15,4},{15,4},{10,4},{15,4},{17,4},{20,8},
{17,4},{24,4},{24,4},{20,4},{15,4},{17,12},
{17,4},{22,4},{25,4},{25,4},{17,4},{22,4},{25,8},
{29,4},{27,2},{29,2},{27,4},{25,4},{25,4},{27,12},
{29,4},{29,2},{27,4},{25,4},{27,6},{27,2},{25,4},{24,4},
{20,4},{20,2},{17,2},{20,4},{20,2},{22,2},{22,16},
{0xFF,0xFF}};
void delay(uchar p)
{
uchar i,j;
for(;p>0;p--)
for(i=181;i>0;i--)
for(j=181;j>0;j--);
}

void pause()
{
uchar i,j;
for(i=150;i>0;i--)
for(j=150;j>0;j--);
}

/***********************1ms延时函数*****************************/
void delay_1ms(uint q)
{
      uint i,j;
      for(i=0;i
            for(j=0;j<120;j++);
}

/******************按键程序*************************/
uchar key_can;       //按键值

void key()       //独立按键程序
{
      static uchar key_new = 0, key_l;
      key_can = 20;                //按键值还原
      P1 = 0x0f;
      if((P1 & 0x0f) != 0x0f)             //按键按下
      {
            delay_1ms(1);                   //按键消抖动
            if(((P1 & 0x0f) != 0x0f) && (key_new == 1))
            {                                              //确认是按键按下
                     key_new = 0;
                     key_l = (P1 | 0x0f); //矩阵键盘扫描
                     P1 = key_l;
                     switch(P1)
                     {
                              case 0xee:  key_can = 0; m = 8;       TR0 = 1; break;  //得到按键值  //打开定时器
                              case 0xde:  key_can = 1; m = 9;       TR0 = 1; break; //得到按键值
                              case 0xbe:  key_can = 2; m = 10;       TR0 = 1; break; //得到按键值
                              case 0x7e:  key_can = 3; m = 11;       TR0 = 1; break; //得到按键值

                              case 0xed:  key_can = 4; m = 12;       TR0 = 1; break;  //得到按键值
                              case 0xdd:  key_can = 5; m = 13;       TR0 = 1; break; //得到按键值
                              case 0xbd:  key_can = 6; m = 14;       TR0 = 1;  break; //得到按键值
                              case 0x7d:  key_can = 7; m = 15;       TR0 = 1; break; //得到按键值

                              case 0xeb:  key_can = 8; m = 16;       TR0 = 1; break;  //得到按键值
                              case 0xdb:  key_can = 9; m = 17;       TR0 = 1; break; //得到按键值
                              case 0xbb:  key_can = 10; m = 18;       TR0 = 1; break; //得到按键值
                              case 0x7b:  key_can = 11; m = 19;       TR0 = 1; break; //得到按键值

                              case 0xe7:  key_can = 12; m = 20;       TR0 = 1; break;  //得到按键值
                              case 0xd7:  key_can = 13; m = 21;       TR0 = 1; break;  //得到按键值
                              case 0xb7:  key_can = 14; m = 22;       TR0 = 1; break; //得到按键值
                              case 0x77:  key_can = 15; m = 23;       TR0 = 1; break;  //得到按键值
                     }
                     P0 = smg_du[key_can];       //显示
                     while(P1 != 0x0f)
                                 P1 = 0x0f;
                     TR0 = 0;             //关闭定时器
            }
      }
      else                //按键松开
      {
            P0 = 0xdf;       //显示小数点
            key_new = 1;
      }

/*********************歌曲播放*********************/
      K1=1 ;
      if(K1==0)
      {
            delay_1ms(10);       //按键去抖动
            if(K1==0)
            {
                     num=8;
//                      P1=smg_du[num];//使数码管显示该音调的字符
                     flag_en ++;
                     flag_i = 0;
                     if(flag_en > 3)
                     {
                              flag_en = 0;
                              TR0 = 0;
                     }
                     while(!K1)
                     {
                     }//使蜂鸣器发出相应频率的声音;
            }
      }
}

/******************主程序**********************/
void main()
{                                                                                                                                                       5*++++++++++++++++
  P0=P3=P2=P1=0xff;

      TMOD=0x01;  EA=1; ET0=1; //定时器0初始化
      while(1)
      {
            P0 = 0xdf;       //显示小数点
            key();       //按键程序
            if(flag_en == 1)       //爱情买卖
            {
                     m=music1[flag_i][0];n=music1[flag_i][1];          //放歌
                     P0 = smg_du[m % 16];       //显示
                     if(m==0x00)
                     {
                              TR0=0;
                              beep = 1;
                              delay(n);
                              flag_i++;
                     }
                     else if(m==0xFF)                               //放歌结束
                     {
                              TR0=0;beep = 1;delay(30);flag_i=0;flag_en = 0;}
                     else if(m==music1[flag_i+1][0])
                              {TR0=1;delay(n);TR0=0;beep = 1;pause();flag_i++; }
                     else
                              {TR0=1;delay(n);flag_i++;}
            }
            else
                     beep = 1 ;

            if(flag_en == 2)       //生日歌
            {
                     m=music2[flag_i][0];n=music2[flag_i][1];          //放歌
                     P0 = smg_du[m % 16];       //显示
                     if(m==0x00)
                     {
                              TR0=0;
                              beep = 1;
                              delay(n);
                              flag_i++;
                     }
                     else if(m==0xFF)                               //放歌结束
                     {
                              TR0=0;beep = 1;delay(30);flag_i=0;flag_en = 0;}
                     else if(m==music2[flag_i+1][0])
                              {TR0=1;delay(n);TR0=0;beep = 1;pause();flag_i++; }
                     else
                              {TR0=1;delay(n);flag_i++;}
            }
            else
                     beep = 1 ;

            if(flag_en == 3)       //新年好
            {
                     m=music3[flag_i][0];n=music3[flag_i][1];          //放歌
                     P0 = smg_du[m % 16];       //显示
                     if(m==0x00)
                     {
                              TR0=0;
                              beep = 1;
                              delay(n);
                              flag_i++;
                     }
                     else if(m==0xFF)                               //放歌结束
                     {
                              TR0=0;beep = 1;delay(30);flag_i=0;flag_en = 0;}
                     else if(m==music3[flag_i+1][0])
                              {TR0=1;delay(n);TR0=0;beep = 1;pause();flag_i++; }
                     else
                              {TR0=1;delay(n);flag_i++;}
            }
            else
                     beep = 1 ;
      }
}

/*****************定时器0中断*********************/
void T0_int() interrupt 1
{
      beep=!beep;
      TH0=T[m][0];
      TL0=T[m][1];
}

lili_qq · 发表于 2023-3-15 15:11

先看明白那句话是什么错误，然后跳到相应的行，基本你就明白了

Terran · 发表于 2023-3-15 15:59

主程序第一行的5*++++++++++++++++是什么鬼，把它删了。

Dollche · 发表于 2023-3-15 16:07

Terran 发表于 2023-3-15 15:599 U- p5 U0 R0 X) n
主程序第一行的5*++++++++++++++++是什么鬼，把它删了。

应该是不小心按上的吧，谁会搞这么多符号。

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error C187: not an lvalue不知道咋改，很急，求解

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