（3）go web开发之 基于雪花算法生成用户ID与自增id，uuid对比
package main
import (
"fmt"
"/bwmarrin/snowflake"
)
func main() {
// Create a new Node with a Node number of 1
// 生成一个节点
node, err := snowflake.NewNode(1)
if err != nil
fmt.Println(err)
return
}
// Generate a snowflake ID.
// type ID int64 这是id的类型，下面定义了很多方法， 获取Base64呀，或者是打印它的时间戳等
id := node.Generate()
// Print out the ID in a few different ways.
fmt.Printf("Int64 ID: %d\n", id)
fmt.Printf("String ID: %s\n", id)
fmt.Printf("Base2 ID: %s\n", id.Base2())
fmt.Printf("Base64 ID: %s\n", id.Base64())
// Print out the ID's timestamp
fmt.Printf("ID Time : %d\n", id.Time())
// Print out the ID's node number
fmt.Printf("ID Node : %d\n", id.Node())
// Print out the ID's sequence number
fmt.Printf("ID Step : %d\n", id.Step())
// Generate and print, all in one.
fmt.Printf("ID : %d\n", node.Generate().Int64())
}