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发表于 2012-11-13 08:48:12
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1判断语句( d: P; y* Y) I
if <condition> then
! U% C, H9 V, Q8 h& T" \ <statement sequence1>;
& _2 o3 c4 N# C9 a& ]. O6 g elseif <condition> then( E& L; V+ M* ~( X$ a% i. K
<statement sequence2>;$ B' P0 ]; U" Q9 Y% x
else
. ^0 a& Z9 K8 P0 G$ I <statement sequence3>;
7 Z% {6 x! _3 _" v w* m Y end;
4 K. F4 u" K9 P3 q% ?+ s如果分支比较多，用：7 H) o. r2 ~" K% b
inspect <expression>* L l7 R# v, u+ n; Z
when <constant_list> then
) m3 V7 e1 G5 l4 A1 \6 x7 E) q+ m <statement sequence1>;
1 j& }3 v0 y6 V# P1 I9 y& z; m when <constant_list> then
2 g0 C% y+ h0 L0 T9 S, f4 G& l <statement sequence2>;
C- X' C+ D/ p+ T1 Y1 ]/ ` ...
$ U6 f% h% ^# M else
. {3 `' D O9 \; m6 [7 e v <statement sequence3>;& @* Z) t" z( w$ X+ @6 D: g
end; ~$ n. {7 t" U* ]4 Q* h2 i
( F: b2 U0 K; v0 |& X6 Y2循环语句; M/ K' o* T- O
(1) from <statement sequence1>
, R7 A% B3 f+ E8 ^ until <condition> loop
# z' d. e7 `# U/ Y <statement sequence2>;1 R9 N# M" j) O8 A
end;
" O+ @3 R3 b; p9 ` (2) while <condition> loop. J7 `; Z4 j2 ?
<statement sequence1>;
% L4 | j, B( o6 b7 z, q. Y/ d# e end;
1 D$ W2 S% {* v$ Z+ W& R (3) repeat
, m/ t9 e2 ]7 J1 I( K6 ^# p <statement sequence1>;% E& y/ G. t6 n) M8 U8 S
until <condition>;
+ T7 a; Z, C- P" {( E. Z' Y! t (4) for <condition> to <condition> loop- C( p; y7 M+ l2 J* r5 B D
<statement sequence1>;8 @& I9 w# j& h3 x) j
next;
, ?. V( a& z9 c, x/ W7 |, J/ X! m3中断语句
6 F: m) C, N7 A% B% g' e& K waituntil <condition> prio <integer expression>;
, P3 {) d" ]2 g5 N$ k8 v, H* r7 A. |6 i
n. P% ]& P# {1 j( }" j以上为常用的函数！
3 B1 p8 Y0 ]2 w, w2 }. I S还有很多，如有需要我把资料发到你邮箱里
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