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发表于 2012-11-13 08:48:12
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1判断语句% T# e* O5 A( i# l( h
if <condition> then% D1 v# _7 z; ~- H) N: y* A5 r7 E
<statement sequence1>;# ?9 m/ T- o+ S1 M0 \" Q, T
elseif <condition> then. K0 g" u; |# v: d) _4 U9 |
<statement sequence2>;* @! t8 x3 z! ~" a& \
else
8 N8 }. h/ ]1 |6 P7 H0 |; x <statement sequence3>;
; o5 V- {$ B2 c$ s# J) G: _ end;
5 l w+ K1 b- a如果分支比较多，用： G! S, m6 u/ S. W
inspect <expression>! W6 V2 Q0 E, Z+ ?
when <constant_list> then0 J" @* b& w# |$ `3 n
<statement sequence1>;
5 J# B9 `" ?$ i1 i5 b" B" D+ K( c when <constant_list> then
% q$ } q3 \$ P, ^$ J <statement sequence2>;1 ~) c; n% f( j
...: `' T, W/ O5 y$ U
else
# Y( |, [+ Z/ |- N% U, j <statement sequence3>;4 x! @$ ?7 N7 Y6 L1 ]
end;8 m0 J$ s5 x8 S+ J4 k4 P
$ ?( M* i9 U9 a' w2循环语句: j: V# d) C, Y& T
(1) from <statement sequence1>
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<statement sequence2>;
. h9 h0 t9 H' {" q1 d6 d end; l3 o( b" d/ p |
(2) while <condition> loop
7 P! a- }0 Z- o4 P h$ ? <statement sequence1>;
( F1 {3 V& r* ~: } @ end;+ s! i7 @( N$ g$ a
(3) repeat
4 O0 n6 b- ?9 @. `4 G% ^ <statement sequence1>;
2 x; f* U% @- p2 o* q until <condition>;6 v* W9 J- `! B2 f: x1 o
(4) for <condition> to <condition> loop4 Z( ?# Y1 \4 I# B @2 }$ Y
<statement sequence1>;
7 D+ A1 x. P% k# H/ M6 D5 G+ g5 h next;
7 `3 d1 p7 v) m! f) M8 h3中断语句
# Q$ q8 s* z2 D waituntil <condition> prio <integer expression>;6 ^& m* H8 \9 T+ n
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以上为常用的函数！
- |0 c; ^8 ~+ K2 m+ j还有很多，如有需要我把资料发到你邮箱里 9 `8 v6 c M2 D' z/ c) M, {- C
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