go 生成随机小数 指定范围

package main

import (
	"crypto/hmac"
	"crypto/sha1"
	"encoding/base64"
	"encoding/json"
	"errors"
	"fmt"
	"net/http"
	"net/url"
	"strings"
	"time"
	"math/rand"
	"strconv"

	. "github.com/nntaoli-project/GoEx"
	"github.com/sumorf/goalgo"
	"github.com/sumorf/goalgo/log"
)


func main(){package main

import (
	"crypto/hmac"
	"cry