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发表于 2012-11-13 08:48:12
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1判断语句$ o- W$ y# @6 e6 {# ^
if <condition> then* v8 n3 F# b1 o
<statement sequence1>;
! g& V4 }) f# |1 Y elseif <condition> then& p2 K) ~1 M9 Y. v# W" g5 Z
<statement sequence2>;% b4 s9 O* D9 O6 g, T
else
, H* [; e2 o' j; D: \ <statement sequence3>;* f$ {7 P! @4 s* D$ k
end;
Z' _3 C# |6 k6 ]如果分支比较多，用：" Z( q" ?/ l p3 L1 E
inspect <expression>
3 w) D4 q; x& h- n( Q when <constant_list> then
; c8 U. j. E& k9 _' V4 u; T5 w2 p* V <statement sequence1>;, v/ u- x* E; E9 {5 r: C) V
when <constant_list> then
/ J1 ^$ b: Q, q& I; m <statement sequence2>;3 P% e( Z. c9 s/ N% n4 B
...2 d4 c4 j* |6 [+ a
else) h, ^; {. k2 o. ]4 a
<statement sequence3>;8 ~2 @+ {, O7 G. _0 d% J
end;
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2循环语句& Y7 E: _; w4 I2 r# L" b
(1) from <statement sequence1>0 K# A; p$ ?% S' B* L+ V5 e0 e% P
until <condition> loop
- b, w6 d+ }' Z) W- Y# t) H <statement sequence2>;
% E6 w- o( }/ v: L+ i% T& j end;
5 K9 d! x( A9 w: b& X) J6 Q (2) while <condition> loop
3 y& B: Y8 l: {) Q- K* K9 n <statement sequence1>;, d* k- x) G' X6 r+ ]1 j; I" L
end;
, o. B/ c+ p& h' u; o (3) repeat . X+ x: [3 b; ~* ?& U! Y/ O' }
<statement sequence1>;
3 A5 ]: p/ O1 d: a u& O until <condition>;& h" t4 y6 D& q
(4) for <condition> to <condition> loop
3 ?3 P/ U! K9 t9 ` <statement sequence1>;" x2 ?1 B# a( m5 e* _4 \$ e' D; Q0 s8 i
next;* N; y* f9 ~" d5 {
3中断语句
* t* q! ^4 ^: E y( \ waituntil <condition> prio <integer expression>;
g0 `2 H9 m: _6 G' h9 T+ ~0 C4 {4 Y y6 n. y" a- s, V$ E7 O
+ ?0 Z T9 C9 F5 n& {% U- v7 q
以上为常用的函数！( L% j8 j5 i4 J6 I8 n
还有很多，如有需要我把资料发到你邮箱里 2 G, S" b& @8 ]% m
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