fmt.Println(time.Now().Format("2006-01-02 15:04:05")) # 这是个奇葩,必须是这个时间点, 据说是go诞生之日, 记忆方法:6-1-2-3-4-5
# 2014-01-07 09:42:20
获取当前时间：time.Now()。返回time对象
获取当前时间戳：time.Now().Unix()
一、转time对象
1. 时间戳整数转time，Unix()：time.Unix(time.Now().Unix(),0)
// Unix returns the local Time corresponding to the given Unix time,
// sec seconds and nsec nanoseconds since January 1, 1970 UTC.
// It is valid to pass nsec outside the range [0, 999999999].
// Not all sec values have a corresponding time value. One such
// value is 1<<63-1 (the largest int64 value).
func Unix(sec int64, nsec int64) Time {
2.字符串转time,Parse()：time.Parse("20060102","20180328")
func Parse(layout, value string) (Time, error) {
二、time对象转其它
1. time转时间戳整数，Unix()： time.Now().Unix()
2.time转格式化的时间，Format：time.Now().Format("20060102")
