获取当前时间为YYYY-MM-DD-HH-MM-SS字符串 [英] Getting the current time as a YYYY-MM-DD-HH-MM-SS string
问题描述
我试图获得一种优雅的方式格式化字符串当前时间为YYYY-MM-DD-HH-MM-SS。我可以从Boost的日期时间库ISO格式的当前时间,但它有其他分隔字符串,这将不适合我(我在文件名中使用此)。
当然,我只需更换分隔字符串,但有一种感觉,有一个与日期时间的格式选项做这个更好的方式。有没有这样一种方式,如果是这样,我该如何使用呢?
I'm trying to get the current time as a "YYYY-MM-DD-HH-MM-SS" formatted string in an elegant way. I can take the current time in ISO format from Boost's "Date Time" library, but it has other delimiting strings which won't work for me (I'm using this in a filename). Of course I can just replace the delimiting strings, but have a feeling that there's a nicer way to do this with date-time's formatting options. Is there such a way, and if so, how can I use it?
推荐答案
使用 的std ::的strftime
,它是标准的C ++。
Use std::strftime
, it is standard C++.
#include <cstdio>
#include <ctime>
int main ()
{
std::time_t rawtime;
std::tm* timeinfo;
char buffer [80];
std::time(&rawtime);
timeinfo = std::localtime(&rawtime);
std::strftime(buffer,80,"%Y-%m-%d-%H-%M-%S",timeinfo);
std::puts(buffer);
return 0;
}
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