Button control water light program

Recently, many junior students have come to ask me how to make a running light and how to write a program. Now I will tell you all about
      it here. Many times, I don’t have time to let you go for nothing, O(∩_∩)O~. First of all, let’s talk about the single-chip microcomputer. The single-chip microcomputer is a new concept for you, and you may not have heard of it before. What I want to say is that it is not an integrated circuit in the traditional sense, which can only work according to specific welding. It is a chip similar to a computer CPU. For a normal single-chip microcomputer, as long as you provide a suitable working power supply (4V is about 5.5V), reset circuit, and oscillator circuit, it can work. All input and output ports (starting with P) can be flexibly configured. You can write programs according to the hardware circuit you welded, or you can weld the hardware circuit according to the program you wrote. So there is no need to be rigid. I wrote it the day before yesterday when I had nothing to do, and it worked after simulation. The source code is posted below for beginners to refer to. Experts please don't laugh at me. We all started with the running light program (*^__^*) Hehe...
      I don't know who borrowed my 51 development board. I haven't used the 51 microcontroller for a long time, so don't come to me for downloading programs. I also posted the compiled code below. If you have the same hardware as me and don't know how to write programs, just copy the compiled code below, create a new text document (.txt) on the computer and name it arbitrarily, paste the copied code in Notepad, then rename it, change ".txt" to ".hex", save it, and then download it to the microcontroller through the downloader and you can use it.
      If you don't know how to do it, go to http://www.51hei.com  to look at the tutorial. The following is for reference only, please do not blindly imitate        
/********************************************************************************************************************************************************************************************************************
/ #include #define uint unsigned int #define uchar unsigned char
sbit
key1
=P2^0; //Key
1 sbit key2 =P2^ 1; //Key 2 sbit key3 =P2^2; //Key 3 uchar flag1=0,flag2=0,flag3=0; void delay_ms (
uint z) {      uint i,j;      for(i=0;i>i);                             delay_ms(100);                             key_scan(); //key scan    























































                            if(flag2||flag3){flag1=0;break;} //If other keys are pressed, respond to other keys
                   }
             }
             if(flag2) //One key is pressed?                   
             {
                    for(i=0;i<8;i++) //Light up from right to left, one at a time  
                   {
                            P0=~(0x01<                             delay_ms(100);
                            key_scan();
                            if(flag1||flag3){flag2=0;break;}
                   }
             }
              if(flag3)
             {
                   O_to_E(); //Even and odd flash alternatelykey_scan
                   ();
                   if(flag1||flag2)flag3=0;
              }
        }
}
/***********************************************************************************************************************
Compiled file
Note: Copy the following code (be careful not to include this sentence, and be careful not to change the format)
:09015700010800010900010A0081
:040123007F0A7E00D1 ; 012796
:
0A00F400F4F5807F647E00120127FE : 1000FE0020A00912012320A00375080120A10912D6 :10010E00012320A10375090120A20912012320A2B7 :05011E0003750A012237 : 10008F001200FE1200FEE5086021E4F97480A80159 :10009F00088002C31 3D8FC1200F4E5097004E50AC6 : 1000AF006005E4F508800409B908E1E509601FE47B :1000BF00F97401A801088002C333D8FC1200F4E5DB :1000CF00087004E50A6003E4F50909B908E3E50AD5 :1000DF0060B11201471200FEE5087004E50960A344 :0500EF00E4F50A809E0B :03000000020003F8 : 0C0 00300787FE4F6D8FD75810A02004AFF :10000F0002008FE493A3F8E493A34003F68001F278 :10001F0008DFF48029E493A3F85407240CC8C333F2 :10002F00C4540F4420C8834004F456800146F6DFC1 :10003F00E4800B0102040810204080900157E47EF9 :10004F00019360BCA3FF543F30E509541FFEE493B6 :10005F00A360010ECF54C025E060A840B8E493A37D :10006F00FAE493A3F8E493A3C8C582C8CAC583CAA8 :10007F00F0A3C8C582C8CAC583CADFE9DEE780BE60 :01016000009E :00000001FF End (Be careful not to include this sentence and the ※ above, and be careful not to change the format!)