getMilliseconds static method
获取milliseconds
中的时分秒毫秒之和
Returns 总共毫秒数
Implementation
static int getMilliseconds(int milliseconds) {
var date = DateTime.fromMillisecondsSinceEpoch(milliseconds);
var millSecond = date.millisecond;
var second = 1000 * date.second;
var minute = 1000 * 60 * date.minute;
var hour = 1000 * 60 * 60 * date.hour;
return millSecond + second + minute + hour;
}