【Windows 编程】获取当前时间，并转化成字符串

Calvin.liu

于 2020-08-07 10:52:03 发布

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本文链接：https://blog.youkuaiyun.com/helanzhiying/article/details/107857518

版权

本文介绍了一个使用C语言获取当前时间并将其格式化为字符串的方法。通过调用time和localtime函数获取本地时间，然后利用strftime函数将时间转换为特定格式的字符串。最后，通过strncat函数将各个时间部分拼接成一个完整的日期时间字符串。

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网上的例子：

#include <time.h>

int getNowTime(char *nowTime)
{
	char acYear[5] = {0};
	char acMonth[5] = {0};
	char acDay[5] = {0};
	char acHour[5] = {0};
	char acMin[5] = {0};
	char acSec[5] = {0};
	time_t now;
	struct tm* timenow;

	time(&now);
	timenow = localtime(&now);
	
	strftime(acYear,sizeof(acYear),"%Y",timenow);
	strftime(acMonth,sizeof(acMonth),"%m",timenow);
	strftime(acDay,sizeof(acDay),"%d",timenow);
	strftime(acHour,sizeof(acHour),"%H",timenow);
	strftime(acMin,sizeof(acMin),"%M",timenow);
	strftime(acSec,sizeof(acSec),"%S",timenow);

	strncat(nowTime, acYear, 4);
	strncat(nowTime, acMonth, 2);
	strncat(nowTime, acDay, 2);
	strncat(nowTime, acHour, 2);
	strncat(nowTime, acMin, 2);
	strncat(nowTime, acSec, 2);
	
	return 0;
}

...
char nowTime[32] = {0};
getNowTime(nowTime);
printf("nowTime is %s.\n", nowTime);