北理孤狼的博客

void binary(unsigned char val) { printf("val:%d\n",val); unsigned char tmp = 0b10000000; printf("0b"); for(int i = 0; i < 8; i++) { if((val & tmp) != 0) { ...

//根据日期获得星期几 unsigned char CaculateWeekDay(int y,int m, int d) { unsigned char buf; if(m==1||m==2) { m+=12; y--; } int iWeek=(d+2*m+3*(m+1)/5+y+y/4-y/100+y/400)%7; s...

//根据时间字符串提取数字（例：“19:30:00”） hour_minute_t num(char *p) { hour_minute_t time; int num = 0; char q[20] = {0}; int i; int j = 0; for(i = 0; p[i] != '\0'; i++) { if(p[...

//修改json对象的值并进行保存 static int parse_app_config(char *file) //file为config.json { char *cfg = read_config_file(file, NULL); static char *state_table[] = { "words=ni hao xiao le;thresh=0.3;ma...

typedef enum { RK_UPGRADE_START, RK_UPGRADE_FINISHED, RK_UPGRADE_ERR, }RK_Upgrade_Status_t; typedef void(*RK_upgrade_callback)(void *user_data, RK_Upgrade_Status_t status); //函数指...

#include <sys/types.h> #include <dirent.h> #include <fcntl.h> #include <stdio.h> #include <sys/stat.h> #include <strings.h> #include <stdlib.h> #include <s...