c_cpp 将Date转换为char数组

Posted 2021-05-14

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char buff[100];
    if(ptm->tm_mon < 10){
            if(ptm->tm_mday < 10){
                    sprintf(buff,"%u-0%u-0%u",(unsigned)ptm->tm_year,(unsigned)ptm->tm_mon,(unsigned)ptm->tm_mday);
            }else{
                    sprintf(buff,"%u-0%u%u",(unsigned)ptm->tm_year,(unsigned)ptm->tm_mon,(unsigned)ptm->tm_mday);
            }
    }else{
            if(ptm->tm_mday < 10){
                    sprintf(buff,"%u-%u-0%u",(unsigned)ptm->tm_year,(unsigned)ptm->tm_mon,(unsigned)ptm->tm_mday);
            }else{
                    sprintf(buff,"%u-%u-%u",(unsigned)ptm->tm_year,(unsigned)ptm->tm_mon,(unsigned)ptm->tm_mday);
            }
    }

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