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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
, H$ R/ ? J1 I9 Z& q5 k2 w if <condition> then
/ r# h5 V& [4 d2 O3 E <statement sequence1>;- E0 U' v* i4 i3 g) J
elseif <condition> then
2 n8 w* d! L' ]8 A- a8 q6 b <statement sequence2>;
# U; Y7 z$ s# l9 [3 r- l else
% \5 w A m% m; p+ B5 G0 R <statement sequence3>;
% r, f$ e0 m6 _) G- v end;6 H1 T; G7 u; u. T0 {
如果分支比较多，用：
- j) l# B9 |1 K inspect <expression>
1 z8 {- t9 K4 u when <constant_list> then9 Q, T/ c3 G9 b m
<statement sequence1>;
2 ?0 L8 C4 E/ h% Z; o: | when <constant_list> then
: F7 ]& _' z2 M4 S+ j& d/ Q, v <statement sequence2>;+ V' l+ f2 @% k0 M% [3 |8 W w3 X
...) k% u! T$ e8 j. b& @. y+ E ^' \
else
5 H" s% B9 `4 b& _5 Q2 A <statement sequence3>;
7 X$ w0 M& _) W- e& u4 R2 t, eend;
$ E' h y3 R( [; R1 K- }
/ R: I& W) V6 U6 ?) M; q! x _8 J- T$ g2循环语句
5 i6 p0 V# t' I7 H1 }& i/ y! r& s/ x (1) from <statement sequence1>& A% r+ E% Z6 P8 c" t/ X% @! h/ y! M. l9 J
until <condition> loop5 E5 n0 u9 ^) u( |$ G
<statement sequence2>;
# d; c& T* s% J8 X( g" u! z end;% T# x; w6 _. ^% h( ?1 g8 L
(2) while <condition> loop7 h/ L* K0 x, p% b5 o, o5 l- E; A
<statement sequence1>;
2 A* l4 E; E" F+ H3 ^ end;0 e% x- f) W( g& Z% h
(3) repeat
" a% k r+ p& A! t' \ <statement sequence1>;8 e6 B" p3 d& s" u1 x
until <condition>;2 o9 s5 O$ C& e6 }8 J
(4) for <condition> to <condition> loop! D- P( O6 |' v% n7 Y
<statement sequence1>;. D- k: v/ q/ ?2 O0 X2 g
next;
) y+ S! E% a1 ?8 V, |3中断语句
; K9 y; j* b. ~7 X5 c waituntil <condition> prio <integer expression>;6 D& Y: W( Z" k" h0 J
6 ]% \$ ^& ?6 F; E, o4 }. b' _
! Q7 h, ^' x4 k7 f以上为常用的函数！
0 C5 ~/ Y- M4 q! F' R- _还有很多，如有需要我把资料发到你邮箱里
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