50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
package utils
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import (
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"crypto/md5"
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"encoding/hex"
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"math/rand"
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)
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// GetMD5Encode 获取Md5编码
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func GetMD5Encode(data string) string {
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h := md5.New()
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h.Write([]byte(data))
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return hex.EncodeToString(h.Sum(nil))
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}
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const (
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StringChars1 = "0123456789"
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StringChars2 = "abcdefghijklmnopqrstuvwxyz"
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StringChars3 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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StringChars4 = "0123456789abcdefghijklmnopqrstuvwxyz"
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StringChars5 = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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StringChars6 = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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StringChars7 = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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)
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// RandomString 获取随机字符串
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func RandomString(chars string, length int8) string {
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result := make([]byte, length)
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for i := int8(0); i < length; i++ {
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result[i] = chars[rand.Intn(len(chars))]
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if i == 0 && result[i] == '0' {
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i--
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}
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}
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return string(result)
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}
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// GetDisplayWidth 获取字符串长度
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func GetDisplayWidth(text string) int {
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width := 0
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for _, r := range text {
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if r <= 0x7F {
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width += 1 // ASCII，半角
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} else {
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width += 2 // CJK、日文假名等，全角
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}
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}
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return width
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}
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