#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
void (*log_out)(uint8_t *,uint32_t len)=USART2_send;
static char printBuf = {0U};
int t_log(const char *fmt_s, ...)
{
va_list aptr;
int ret;
va_start(aptr,fmt_s);
ret = vsprintf(printBuf, fmt_s, aptr);
va_end(aptr);
if(log_out!=T_NULL)log_out((uint8_t*)printBuf,strlen(printBuf));
return(ret);
}
printf已经out了,
你这个效率很低
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