LancetRandom
random 随机数生成器包，可以生成随机[]bytes, int, string。
源码:
用法:
go
import (
"github.com/duke-git/lancet/v2/random"
)import (
"github.com/duke-git/lancet/v2/random"
)目录
文档
RandBytes
生成随机字节切片
函数签名:
go
func RandBytes(length int) []bytefunc RandBytes(length int) []byte示例:运行
go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randBytes := random.RandBytes(4)
fmt.Println(randBytes)
}package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randBytes := random.RandBytes(4)
fmt.Println(randBytes)
}RandInt
生成随机int, 范围[min, max)
函数签名:
go
func RandInt(min, max int) intfunc RandInt(min, max int) int示例:运行
go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
rInt := random.RandInt(1, 10)
fmt.Println(rInt)
}package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
rInt := random.RandInt(1, 10)
fmt.Println(rInt)
}RandString
生成给定长度的随机字符串，只包含字母(a-zA-Z)
函数签名:
go
func RandString(length int) stringfunc RandString(length int) string示例:运行
go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandString(6)
fmt.Println(randStr) //pGWsze
}package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandString(6)
fmt.Println(randStr) //pGWsze
}RandUpper
生成给定长度的随机大写字母字符串
函数签名:
go
func RandUpper(length int) stringfunc RandUpper(length int) string示例:运行
go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandString(6)
fmt.Println(randStr) //PACWGF
}package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandString(6)
fmt.Println(randStr) //PACWGF
}RandLower
生成给定长度的随机小写字母字符串
函数签名:
go
func RandLower(length int) stringfunc RandLower(length int) string示例:运行
go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandLower(6)
fmt.Println(randStr) //siqbew
}package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandLower(6)
fmt.Println(randStr) //siqbew
}RandNumeral
生成给定长度的随机数字字符串
函数签名:
go
func RandNumeral(length int) stringfunc RandNumeral(length int) string示例:运行
go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandNumeral(6)
fmt.Println(randStr) //035172
}package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandNumeral(6)
fmt.Println(randStr) //035172
}RandNumeralOrLetter
生成给定长度的随机字符串（数字+字母)
函数签名:
go
func RandNumeralOrLetter(length int) stringfunc RandNumeralOrLetter(length int) string示例:运行
go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandNumeralOrLetter(6)
fmt.Println(randStr) //0aW7cQ
}package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
randStr := random.RandNumeralOrLetter(6)
fmt.Println(randStr) //0aW7cQ
}UUIdV4
生成UUID v4字符串
函数签名:
go
func UUIdV4() (string, error)func UUIdV4() (string, error)示例:运行
go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
uuid, err := random.UUIdV4()
if err != nil {
return
}
fmt.Println(uuid)
}package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
uuid, err := random.UUIdV4()
if err != nil {
return
}
fmt.Println(uuid)
}RandUniqueIntSlice
生成一个不重复的长度为n的随机int切片。
函数签名:
go
func RandUniqueIntSlice(n, min, max int) []intfunc RandUniqueIntSlice(n, min, max int) []int示例:运行
go
package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
result := random.RandUniqueIntSlice(5, 0, 10)
fmt.Println(result) //[0 4 7 1 5] (random)
}package main
import (
"fmt"
"github.com/duke-git/lancet/v2/random"
)
func main() {
result := random.RandUniqueIntSlice(5, 0, 10)
fmt.Println(result) //[0 4 7 1 5] (random)
}