Golang生成区间随机整数

package main  
  
import (  
    "fmt"  
    "math/rand"  
    "time"  
)  
  
func main() {  
    rand.Seed(time.Now().UnixNano())  
  
        x := rand.Intn(100)   //生成0-99随机整数
        fmt.Println(x)  
  
}