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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% Z1 A7 N' G0 b/ I2 X if <condition> then
& v. f& G' g! O' S+ @( o3 W <statement sequence1>;
0 x H* E! ]- `2 h2 V/ o1 R elseif <condition> then
4 y. g" `$ y: c5 |9 ~1 z <statement sequence2>;) e, S2 H# \( X8 C) z
else 7 X8 q" W& p9 Y+ d2 x# t, Q
<statement sequence3>;# m5 e* D( G' o* `" v9 p1 ?
end;
# A, u' I0 Q: y- p9 G6 O如果分支比较多，用：
" l! @2 u& S( j$ k0 r inspect <expression>- ^0 Q' U, }1 L9 V# K9 e; ~' R; G
when <constant_list> then
8 a& p, \1 [% P* v7 T- E( v c; P <statement sequence1>;' x8 V/ U+ m$ ], Y
when <constant_list> then4 S# E# f3 o+ @9 z
<statement sequence2>;
% u- q8 b5 O* e2 f; x ...7 T9 I* R2 F; t2 C1 g
else7 U' Y) X I9 O7 i+ D
<statement sequence3>;
5 N8 c0 N' ^/ `" A2 b2 {9 C$ A2 Hend;
; m6 V3 |" w- H& R3 j; H, l+ P9 m- k$ e# a6 k' R1 a( @7 P/ E
2循环语句( f i0 ^( L, i7 v G, @6 X$ e- V5 I
(1) from <statement sequence1>! F& t1 i! R' J
until <condition> loop0 P: S; }, T8 E$ b/ d8 j
<statement sequence2>;
w3 ~( C2 q! B end;7 n) J6 E( O y) ?$ O" A! O% V9 e
(2) while <condition> loop6 a! c' R& T6 f% l
<statement sequence1>;
" q! E4 I s! B S; X3 Y: a& ], X end;
! p4 ~0 h# s# {; Z% ]) o: I (3) repeat 7 n! k0 r2 A- n3 e7 m" r, I
<statement sequence1>;
* m' _9 d' i4 n8 G until <condition>;1 [! B9 @. _* W' h4 A/ X1 w7 O
(4) for <condition> to <condition> loop# A7 |! K! `; E, p/ M
<statement sequence1>;
$ ?% G; D' O+ \ next;
A. i+ f1 j# r% \# i& ~9 F% _3中断语句
3 k- |- L1 g9 ?' h waituntil <condition> prio <integer expression>;+ D: S% S* R: n. Y
5 w" F- j) d. O6 t+ Q F9 e& z$ C& [; K3 ?% `. ?" b2 O. \9 y! p6 |0 F% b
以上为常用的函数！
% P! h5 p' E5 i4 |. x还有很多，如有需要我把资料发到你邮箱里 $ `2 \9 ~ P& N/ q$ ^, i
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