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发表于 2012-11-13 08:48:12
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1判断语句
/ D: A: o0 N. H4 F$ ^ if <condition> then: S; d* V0 @6 ^$ O( H# ]5 \, C
<statement sequence1>;
& r7 s3 C2 b9 }5 C: x. C elseif <condition> then
. x4 ?3 O- H |( s <statement sequence2>;
! z& m6 s" L+ h: E8 h4 b: w else
' s4 N$ r: L _, i <statement sequence3>;' w9 j2 ?2 i. [; o7 t
end;3 J; q- W" L* a
如果分支比较多，用：5 f8 d% y) g+ A0 [- c
inspect <expression>, n( Y9 S6 U9 K
when <constant_list> then
5 u! n, E4 z0 A. l/ y3 H. O <statement sequence1>;
6 U( s. v0 a3 s5 ~ when <constant_list> then
/ c5 @) A1 F$ x5 b; O$ L" l; X7 Q <statement sequence2>;
! f: B; E1 }8 s* N# [ ...
3 [; J* a( b. a5 J else
x2 R: W/ A3 b$ j5 f) K& p <statement sequence3>;
' Q4 Z0 L3 i" G* Wend;
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4 N6 r6 H& A3 X$ [7 t/ l# X4 n2循环语句 b; N( B7 [$ S( B
(1) from <statement sequence1>
, l$ y7 f1 O! n3 J until <condition> loop
" V- N( l# D- n- ` <statement sequence2>; j) Y% l! @* O% ^
end;* }* c+ A- |9 K( C: X1 v
(2) while <condition> loop
- \: S; z7 Q; m# y0 B <statement sequence1>;
+ W4 c) ~6 u" X4 o end;* g2 X, I C7 d# i) G& P$ P
(3) repeat
! H: @* m) p+ C( e. u k, q <statement sequence1>;$ T4 g7 a6 a/ K1 c
until <condition>;: X8 g7 x+ b8 Z, Y; [& a) I
(4) for <condition> to <condition> loop
: v2 e! \) U: l; b <statement sequence1>;
+ l2 b3 g& k- R% V! s/ Z2 r# v% [' N next;
9 B: r) Q% y0 v3中断语句$ y: c5 |% T4 S$ w9 s4 H( y
waituntil <condition> prio <integer expression>;2 A2 ?+ n6 l0 B& k1 f- L1 d
7 U5 F( x; A) q) H# S" O9 L6 S0 r) J8 l3 s; ^ c# N5 i+ r! U, V
以上为常用的函数！" M: x+ J1 y/ a2 J
还有很多，如有需要我把资料发到你邮箱里 " L$ C) T$ {# ~9 A
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p( b3 q+ b7 {! Y% Y$ I 9 i# P+ n) Y. I: T4 @1 G% S
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