js前端 c#后端密码验证策略-大小写特殊字符长度

     //包含小写字母
        private static readonly string REG_CONTAIN_LOWERCASE_ASSERTION = @"(?=.*[a-z])";

        //包含大写字母
        private static readonly string REG_CONTAIN_UPPERCASE_ASSERTION = @"(?=.*[A-Z])";

        //包含数字
        private static readonly string REG_CONTAIN_DIGIT_ASSERTION = @"(?=.*\d)";

        //包含特殊字符
        private static readonly string REG_CONTAIN_SPECIAL_CHAR_ASSERTION = @"(?=.*[ !""#$%&'()*+,-./:;<=>?@\[\]\^_`{|}~])";

        public bool ValidatePwd(string pattern, string input)
        {
            Regex regex = new Regex(pattern);
            return regex.IsMatch(input);
        }

   public void Login(loginInfo obj)
  {

         if (obj.UserPwd.Length < 10)
                {
                    //  "密码至少有 10个字符长";
                }
                else if ((ValidatePwd(REG_CONTAIN_LOWERCASE_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_UPPERCASE_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_DIGIT_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_SPECIAL_CHAR_ASSERTION, user.UserPwd))
                  || (!ValidatePwd(REG_CONTAIN_LOWERCASE_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_UPPERCASE_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_DIGIT_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_SPECIAL_CHAR_ASSERTION, user.UserPwd))
                  || (ValidatePwd(REG_CONTAIN_LOWERCASE_ASSERTION, user.UserPwd) && !ValidatePwd(REG_CONTAIN_UPPERCASE_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_DIGIT_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_SPECIAL_CHAR_ASSERTION, user.UserPwd))
                  || (ValidatePwd(REG_CONTAIN_LOWERCASE_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_UPPERCASE_ASSERTION, user.UserPwd) && !ValidatePwd(REG_CONTAIN_DIGIT_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_SPECIAL_CHAR_ASSERTION, user.UserPwd))
                  || (ValidatePwd(REG_CONTAIN_LOWERCASE_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_UPPERCASE_ASSERTION, user.UserPwd) && ValidatePwd(REG_CONTAIN_DIGIT_ASSERTION, user.UserPwd) && !ValidatePwd(REG_CONTAIN_SPECIAL_CHAR_ASSERTION, user.UserPwd)))
                {
                    //通过
                }
                else
                {
               //必须符合规则：至少有 10个字符长; 2. 至少包含以下四类字符中的三类字符：①英文大写字母（A 到 Z）;②英文小写字 母（a 到 z）;③10 个基本数字（0 到 9）；④非字母字符（例如%、#、&）;
                }
  }

js前端：

       //是否包含数字
        var ptr_digit = /^.*[0-9]+.*$/;
        //是否包含小写字母
        var ptr_lowcase = /^.*[a-z]+.*$/;

        //是否包含大写字母
        var ptr_upcase = /^.*[A-Z]+.*$/;

        //是否包含特殊字符（非数字、字母的字符）
        var ptr_special = /((?=[\x21-\x7e]+)[^A-Za-z0-9])/;

            if (pwd.length < 10)
              {
                    alert("密码至少有 10个字符长");
                    return false;

                } else if ((ptr_digit.test(pwd) && ptr_lowcase.test(pwd) && ptr_upcase.test(pwd) && ptr_special.test(pwd))
                    || (!ptr_digit.test(pwd) && ptr_lowcase.test(pwd) && ptr_upcase.test(pwd) && ptr_special.test(pwd))
                    || (ptr_digit.test(pwd) && !ptr_lowcase.test(pwd) && ptr_upcase.test(pwd) && ptr_special.test(pwd))
                    || (ptr_digit.test(pwd) && ptr_lowcase.test(pwd) && !ptr_upcase.test(pwd) && ptr_special.test(pwd))
                    || (ptr_digit.test(pwd) && ptr_lowcase.test(pwd) && ptr_upcase.test(pwd) && !ptr_special.test(pwd))) {
                    //通过
                } else 
                {
                    alert("必须符合规则：至少有 10个字符长; 2. 至少包含以下四类字符中的三类字符：①英文大写字母（A 到 Z）;②英文小写字 母（a 到 z）;③10 个基本数字（0 到 9）；④非字母字符（例如%、#、&）;");
                    return false;
                }