Design skills of main function of Blue Bridge Cup single chip microcomputer

Main function structure design ：

#include <main.h>//unsigned char time_fage_n=0;unsigned char time_flag_0=0;//bit name_mode_flag=0;bit mode_flag=0;bit ad_mode_flag=0;bit led_mode_flag=0;bit smg_mode_flag=0;//dat_para_setunsigned char da_para;void main(){//name_mode_init();Timer2Init();  // Timer 2 initialization , timing 2mssmg_init();  // Nixie tube initialization , Namely blanking board_init();  // Relay , Buzzer initialization （ close ）led_init();  //led initialization （ Extinguish all ）while(1)   // Into the loop {/* Time slice cycle *//* Use timer interrupt to generate a certain time slice cycle , And execute a specific function during the cycle . Which uses time_flag_n++ To generate a cycle time slice *//* utilize time_flag_n%para Is in time_flag_n Execute the function multiple times before clearing *//* utilize time_flag_n==para Is in time_flag_n Execute only once before clearing , Different parameters separate the execution time of different functions *//* Use different time_flag Multiple different cycles can be generated , Make the functions executed in each cycle isolated from each other , No interference *///key_scanif(time_flag_0%5==0){key_scan(); // Every time 10ms One key scan }//da_out_and_ad_in/* Bear in mind , If the program needs digital to analog conversion or analog-to-digital conversion at the same time , Please put the two functions together , Otherwise, the risk of digital to analog conversion failure will occur , And if the time between two functions is longer &#x