浅谈时间戳与日期时间互转C语言
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/* * ctime.h * * Created on: May 19, 2016 * */ #ifndef CTIME_H_#define CTIME_H_#include "common/micro_type.h"#define OFFSET_SECOND 946684800 /* ��1970/1/1/0/0/0��2000/1/1/0/0/0֮��������� *///#define OFFSET_SECOND 0 /* ��2000/1/1/0/0/0��2000/1/1/0/0/0֮��������� */#define SECOND_OF_DAY 86400 /* 1������� */ typedef struct date_time{ uint16 iYear; uint16 iMon; uint16 iDay; uint16 iHour; uint16 iMin; uint16 iSec; uint16 iMsec;} DATE_TIME; void GetDateTimeFromSecond(unsigned long lSec, DATE_TIME *tTime);#endif /* CTIME_H_ */ /* * ctime.c * * Created on: May 19, 2016 * Author: root */#include "common/micro_type.h"#include "ctime.h"uint8 DayOfMon[12] = {31,28,31,30,31,30,31,31,30,31,30,31}; /* ������1970/1/1/0/0/0�����ʱ */unsigned long GetSecondTime(DATE_TIME *date_time){ uint16 iYear, iMon, iDay, iHour, iMin, iSec; iYear = date_time->iYear; iMon = date_time->iMon; iDay = date_time->iDay; iHour = date_time->iHour; iMin = date_time->iMin; iSec = date_time->iSec; uint16 i, Cyear=0; unsigned long CountDay=0; for(i=1970; i<iYear; i++) /* ͳ��1970�굽����֮ǰ�������� */ { if(((i%4==0) && (i%100!=0)) || (i%400==0)) Cyear++; } CountDay = Cyear * 366 + (iYear-1970-Cyear) * 365; for(i=1; i<iMon; i++) { if((i==2) && (((iYear%4==0)&&(iYear%100!=0)) || (iYear%400==0))) CountDay += 29; else CountDay += DayOfMon[i-1]; } CountDay += (iDay-1); CountDay = CountDay*SECOND_OF_DAY + (unsigned long)iHour*3600 + (unsigned long)iMin*60 + iSec; return CountDay;} /* ����ʱ�������1970/1/1/0/0������ */void GetDateTimeFromSecond(unsigned long lSec, DATE_TIME *tTime){ uint16 i,j,iDay; unsigned long lDay; lDay = lSec / SECOND_OF_DAY; /* תΪ�������ʱ�� */ lSec = lSec % SECOND_OF_DAY; i = 1970; while(lDay > 365) { if(((i%4==0)&&(i%100!=0)) || (i%400==0)) /* ���� */ lDay -= 366; else lDay -= 365; i++; } if((lDay == 365) && !(((i%4==0)&&(i%100!=0)) || (i%400==0))) /* ƽ�� */ { lDay -= 365; i++; } tTime->iYear = i; /* �õ���� */ for(j=0;j<12;j++) /* �����·� */ { if((j==1) && (((i%4==0)&&(i%100!=0)) || (i%400==0))) iDay = 29; else iDay = DayOfMon[j]; if(lDay >= iDay) lDay -= iDay; else break; } tTime->iMon = j+1; tTime->iDay = lDay+1; tTime->iHour = ((lSec / 3600)+8)%24;//这里注意，世界时间已经加上北京时间差8， tTime->iMin = (lSec % 3600) / 60; tTime->iSec = (lSec % 3600) % 60;} |
以上这篇浅谈时间戳与日期时间互转C语言就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
