golang取两个数字之间的随机数
package main
import (
"crypto/rand"
"math/big"
"fmt"
)
func main(){
fmt.Println(RandInt64(100,3000))
}
func RandInt64(min,max int64) int64{
maxBigInt:=big.NewInt(max)
i,_:=rand.Int(rand.Reader,maxBigInt)
if i.Int64()<min{
RandInt64(min,max)
}
return i.Int64()
}
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`单行代码`
golang取两个数字之间的随机数
package main
import (
"crypto/rand"
"math/big"
"fmt"
)
func main(){
fmt.Println(RandInt64(100,3000))
}
func RandInt64(min,max int64) int64{
maxBigInt:=big.NewInt(max)
i,_:=rand.Int(rand.Reader,maxBigInt)
if i.Int64()<min{
RandInt64(min,max)
}
return i.Int64()
}