init: 1.0.0

pkg/tool/email.go

@@ -0,0 +1,23 @@
+package tool
+
+import (
+	"strings"
+)
+
+func MaskEmail(email string) string {
+	atIndex := strings.Index(email, "@")
+	if atIndex == -1 || atIndex == 0 || atIndex == len(email)-1 {
+		return email
+	}
+	localPart := email[:atIndex]
+	domainPart := email[atIndex+1:]
+
+	// 本地部分需要至少保留首字符和末字符
+	if len(localPart) < 2 {
+		return email
+	}
+	// 替换本地部分中间字符为星号
+	maskedLocal := string(localPart[0]) + strings.Repeat("*", len(localPart)-2) + string(localPart[len(localPart)-1])
+	// 返回处理后的邮箱地址
+	return maskedLocal + "@" + domainPart
+}