displayPassword method

String displayPassword(String password)

Implementation

String displayPassword(String password) {
  if (password == null) return "null";
  if (password == "888888") return "初始密码";
  if (password.length > 6)
    return "${password.substring(0, 2)}****${password.substring(password.length - 2)}";
  if (password.length > 3)
    return "****${password.substring(password.length - 2)}";
  return "随机密码***$password";
}