first commit

pkg/htools/Random.go

@@ -0,0 +1,47 @@
+package htools
+
+import (
+	"math/rand"
+	"time"
+)
+
+func GetVericode() string {
+
+	result := RandNumber()
+
+	return result
+
+}
+
+func RandInt64(min, max int64) int64 {
+	if min >= max || min == 0 || max == 0 {
+		return max
+	}
+	return rand.Int63n(max-min) + min
+}
+
+func RandNumber() string {
+
+	str := "0123456789"
+	bytes := []byte(str)
+	result := []byte{}
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	for i := 0; i < 4; i++ {
+		result = append(result, bytes[r.Intn(len(bytes))])
+	}
+	return string(result)
+
+}
+
+// 生成随机字符串
+func GetRandomString(l int) string {
+
+	str := "0123456789abcdefghijklmnopqrstuvwxyz"
+	bytes := []byte(str)
+	result := []byte{}
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	for i := 0; i < l; i++ {
+		result = append(result, bytes[r.Intn(len(bytes))])
+	}
+	return string(result)
+}