函数原型：
复制代码 代码如下:
size_t strftime (char* ptr, size_t maxsize, const char* format,const struct tm* timeptr );

代码示例：

复制代码 代码如下:
#include <stdio.h>
#include <time.h>

int main ()
{
time_t rawtime;
struct tm * timeinfo;
char buffer [128];

time (&rawtime);
timeinfo = localtime (&rawtime);

strftime (buffer,sizeof(buffer),"Now is %Y/%m/%d %H:%M:%S",timeinfo);
puts (buffer);

return 0;
}