不知哪位高手的If语句学的好。帮帮忙来看看这个复杂的判断语句~！

Question

ADOQuery1查询出来的时间记录为：aa(开始时间),bb(结束时间)
cc 为查出来的故障范围
while not ADOQuery1.Eof then
 begin
   if cc='制动环节' then
       if aa=0 then 
          begin
            .............................(画网络图)
            .............................
          end
         else
           begin
             .......................
             .......................
           end;
       if bb=0 then
            begin
            .............................
            .............................
             end
        else
           begin

Answer 1

.......................
             .......................
           end;
    if cc='电器' then
       if aa=0 then 
          begin
            .............................
            .............................
          end；
        else
           begin
             .......................
             .......................
           end;
       if bb=0 then
            begin
            .............................
            .............................
             end
        else
           begin
             .......................
             .......................
           end; 
 end;
请问这样的程序有错误吗？执行时系统不报错。但就是不按规定运行。到底是怎么回事？是不是我的语法上有错误？

Answer 2

呵呵。。我写错了。while not ADOQuery1.Eof Do 不是then. 不好意思~！！

Answer 3

不会吧，while not ADOQuery1.Eof then也能通过编译?

Answer 4

while not ADOQuery1.Eof then
 begin
   if cc='制动环节' then
   begin //加begin
       if aa=0 then 
          begin
            .............................(画网络图)
            .............................
          end
         else
           begin
             .......................
             .......................
           end;
       if bb=0 then
            begin
            .............................
            .............................
             end
        else
           begin
.......................
             .......................
           end;
      end;//加end
    if cc='电器' then
    begin //加begin
       if aa=0 then 
          begin
            .............................
            .............................
          end //去掉;
        else
           begin
             .......................
             .......................
           end;
       if bb=0 then
            begin
            .............................
            .............................
             end
        else
           begin
             .......................
             .......................
           end; 
      end;//加end
 end;

Answer 5

if cc='制动环节' then
begin
if...
if...
end
if cc='电器' then
begin
if ...
if.. 
end

Answer 6

bb的判断是独立的呢？还是属于cc的下层？

Answer 7

怎么没有ADOQUery.Next; //?会死循环的

Answer 8

aa(开始时间)=0
则
bb(结束时间)
也肯定为0所以

Answer 9

    if cc='电器' then
       if aa=0 then 
          begin
            .............................
            .............................
          end；------------------------------------->这里多了一个“；”
        else
           begin
             .......................
             .......................
           end;
       if bb=0 then
            begin

Answer 10

哈哈，说得都有道理，这种程序可维护性太差了，应该好好改造，按照他们说得加上begin 和 end，应该就没问题了

Answer 11

用CASE不能解决么？？？？奇怪