题解 | #密码验证合格程序#

other_symbil = '~!@#$%^&*()_+<>/|[]{}\';
try
    while 1
        line = input('', 's');
        line_char = char(line);

        %% 要求1
        label_1 = find(length(line_char) > 8);
        %% 要求2
        dig_la =0;upper_zimu=0;lower_zimu=0;
        dig_la = length(find(sum(isstrprop(line_char, 'digit')) > 0));
        upper_zimu = length(find(sum(isstrprop(line_char,'upper')) > 0));
        lower_zimu = length(find(sum(isstrprop(line_char,'lower')) > 0));
        other_sy = 0;
        for ii = 1 : length(line_char)
           p_1 = strfind(other_symbil,line_char(ii));
           if isempty(p_1)
           else
              other_sy = 1;
              continue;
           end
        end
        la_2 = (dig_la + upper_zimu + lower_zimu + other_sy) >= 3;
        p_3 = 0;
        %%要求3-子串
        for ii = 1:length(line_char)-3
            line_char_now = line_char(ii:ii+2);
           for jj = (ii + 1)  : length(line_char)-2
               lab_3 =  strcmp(line_char_now,line_char(jj:jj+2));
               if lab_3 == 0
               else
                  p_3 = 1;
                  continue;
               end
           end
           if p_3 == 1
              continue;
           end
        end 
        %%% 判断
        if  (label_1 == 1) && (la_2 == 1) && (p_3 == 0)
           printf("OK \n");
        else
           printf("NG \n");
        end
    end
catch
end