C语言 时间戳和标准格式的转换

http://ilewen.com/questions/3990

[cpp] view
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int main(int argc, char **argv)

{

time_t t;

t = time(NULL);

struct tm *lt;

int ii = time(&t);

printf("ii = %d\n", ii);

t = time(NULL);

lt = localtime(&t);

char nowtime[24];

memset(nowtime, 0, sizeof(nowtime));

strftime(nowtime, 24, "%Y-%m-%d %H:%M:%S", lt);

printf("nowtime = %s\n", nowtime);

return 1;

}

[cpp] view
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int main(int argc, char **argv)

{

time_t t;

t = time(NULL);

struct tm *lt;

int ii = time(&t);

printf("ii = %d\n", ii);

t = time(NULL);

lt = localtime(&t);

char nowtime[24];

memset(nowtime, 0, sizeof(nowtime));

strftime(nowtime, 24, "%Y-%m-%d %H:%M:%S", lt);

printf("nowtime = %s\n", nowtime);

return 1;

}

打印：

<code><span class="pln">ii </span><span class="pun">=</span><span class="pln"> </span><span class="lit">1325302987</span><span class="pln">
nowtime </span><span class="pun">=</span><span class="pln"> </span><span class="lit">2011</span><span class="pun">-</span><span class="lit">12</span><span class="pun">-</span><span class="lit">31</span><span class="pln"> </span><span class="lit">11</span><span class="pun">:</span><span class="lit">43</span><span class="pun">:</span><span class="lit">07</span></code>

随便输入一个标准格式的时间 “2011-12-31 11:43:07”，转换成时间戳 1325302987

[cpp] view
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#include <stdio.h>

#include <time.h>

#include <string.h>

#include <stdlib.h>

long GetTick(char *str_time)

{

struct tm stm;

int iY, iM, iD, iH, iMin, iS;

memset(&stm,0,sizeof(stm));

iY = atoi(str_time);

iM = atoi(str_time+5);

iD = atoi(str_time+8);

iH = atoi(str_time+11);

iMin = atoi(str_time+14);

iS = atoi(str_time+17);

stm.tm_year=iY-1900;

stm.tm_mon=iM-1;

stm.tm_mday=iD;

stm.tm_hour=iH;

stm.tm_min=iMin;

stm.tm_sec=iS;

/*printf("%d-%0d-%0d %0d:%0d:%0d\n", iY, iM, iD, iH, iMin, iS);*/

return mktime(&stm);

}

int main()

{

char str_time[19];

printf("请输入时间:"); /*(格式:2011-12-31 11:43:07)*/

gets(str_time);

printf("%ld\n", GetTick(str_time));

return 0;

}

[cpp] view
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#include <stdio.h>

#include <time.h>

#include <string.h>

#include <stdlib.h>

long GetTick(char *str_time)

{

struct tm stm;

int iY, iM, iD, iH, iMin, iS;

memset(&stm,0,sizeof(stm));

iY = atoi(str_time);

iM = atoi(str_time+5);

iD = atoi(str_time+8);

iH = atoi(str_time+11);

iMin = atoi(str_time+14);

iS = atoi(str_time+17);

stm.tm_year=iY-1900;

stm.tm_mon=iM-1;

stm.tm_mday=iD;

stm.tm_hour=iH;

stm.tm_min=iMin;

stm.tm_sec=iS;

/*printf("%d-%0d-%0d %0d:%0d:%0d\n", iY, iM, iD, iH, iMin, iS);*/

return mktime(&stm);

}

int main()

{

char str_time[19];

printf("请输入时间:"); /*(格式:2011-12-31 11:43:07)*/

gets(str_time);

printf("%ld\n", GetTick(str_time));

return 0;

}