QdateTime获取当前时间的时间戳作为图片名

QDateTime qdt1 = QDateTime::currentDateTime();
QString timeStr = qdt1.toString("yyyyMMddhhmmsszzz");

QString picStr = timeStr.append(".jpg");

"20191014103425263.jpg"
"20191014103425504.jpg"
"20191014103425728.jpg"
"20191014103425904.jpg"
"20191014103426056.jpg"
"20191014103426215.jpg"
"20191014103426371.jpg"
"20191014103426520.jpg"
"20191014103426679.jpg"
"20191014103426839.jpg"
"20191014103427007.jpg"
"20191014103427175.jpg"
"20191014103428468.jpg"
"20191014103428633.jpg"
"20191014103428800.jpg"
"20191014103428960.jpg"
"20191014103429127.jpg"
"20191014103429312.jpg"
"20191014103431691.jpg"
"20191014103431871.jpg"
"20191014103432055.jpg"
"20191014103433159.jpg"
"20191014103433319.jpg"
"20191014103433489.jpg"
"20191014103434688.jpg"
"20191014103434873.jpg"
"20191014103435080.jpg"
"20191014103435255.jpg"
"20191014103435439.jpg"
"20191014103435608.jpg"
"20191014103435767.jpg"
"20191014103435927.jpg"
"20191014103436087.jpg"
"20191014103436263.jpg"
"20191014103436431.jpg"
"20191014103436616.jpg"
"20191014103436799.jpg"
"20191014103436951.jpg"
"20191014103437127.jpg"
"20191014103437296.jpg"
"20191014103437479.jpg"
"20191014103437655.jpg"
"20191014103437824.jpg"
"20191014103438007.jpg"
"20191014103438180.jpg"
"20191014103438343.jpg"
"20191014103438511.jpg"
"20191014103438687.jpg"
"20191014103438880.jpg"

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