44 lines
922 B
Go
44 lines
922 B
Go
package randomx
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import (
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"errors"
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"math/rand"
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"time"
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)
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// 生成指定位数的随机字符串
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func RandomStr(length int) (string, error) {
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if length <= 0 {
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return "", errors.New("位数必须大于0")
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}
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str := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ黄新云"
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bytes := []rune(str)
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// 初始化参数，并赋予空间
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var result = make([]rune, 0, length)
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// 初始化随机因子
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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for i := 0; i < length; i++ {
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result = append(result, bytes[r.Intn(len(bytes))])
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}
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return string(result), nil
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}
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// 生成指定空间的随机数
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func RandomInt(min, max int) (int, error) {
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c := max - min
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if c <= 0 {
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return 0, errors.New("max值需要大于min")
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}
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// 初始化随机因子
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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res := r.Intn(c)
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return min + res, nil
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}
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