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19 lines
446 B
19 lines
446 B
package gostring
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import (
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"crypto/rand"
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"fmt"
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"time"
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)
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// GetUuId 由 32 个十六进制数字组成，以 6 个组显示，由连字符 - 分隔
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func GetUuId() string {
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unix32bits := uint32(time.Now().UTC().Unix())
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buff := make([]byte, 12)
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numRead, err := rand.Read(buff)
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if numRead != len(buff) || err != nil {
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return ""
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}
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return fmt.Sprintf("%x-%x-%x-%x-%x-%x", unix32bits, buff[0:2], buff[2:4], buff[4:6], buff[6:8], buff[8:])
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}
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