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发表于 2012-11-13 08:48:12
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1判断语句
' z, k" h7 v# Q! j/ \0 ` if <condition> then
9 B: A! F, P% K8 z <statement sequence1>;
, b8 k4 \8 w% P- G- e, T elseif <condition> then2 q. [( X5 p& Z7 b& S8 n% y
<statement sequence2>;
/ {, T7 T# q) F o# c, `1 h5 E; v else
' } f0 P$ y3 Z# C- ?; H <statement sequence3>;8 x5 G4 d" a9 O8 i# Z) t9 M
end;: t* P2 H4 n+ v3 V. R
如果分支比较多，用：
# K, t5 L' p, `& x: W/ B: l. r w inspect <expression>2 K$ C: X. K4 v: T- ~' Y6 U4 i
when <constant_list> then: F$ b6 H% @! F
<statement sequence1>;
1 \( v2 K" f2 ^& }5 ?$ I when <constant_list> then$ e2 J$ O6 M. p
<statement sequence2>;
* b9 O" [( K6 l& ~+ x! Y2 ^ ...
7 |6 T% O7 I0 L& u2 m5 K! b+ s( q) ?! Z. B else
_$ S$ |$ h+ h <statement sequence3>;( g, P5 z: L! ]% |7 {: v, C2 V1 k
end;0 n ~7 p- P; F# T% ]
A( t0 @; A6 ^2循环语句
+ f2 G; y5 ?" z$ H) ~5 u- h9 F4 S (1) from <statement sequence1>
* x9 s' |9 `4 f* I# I until <condition> loop! z6 w, t8 |" Q r& B# f4 J
<statement sequence2>;0 p; [! v) j6 F3 ]8 D
end;
/ W7 f5 [8 j7 g ]* E6 ^& P0 I (2) while <condition> loop- L# x: t+ E" D! N- x# G
<statement sequence1>;; _$ }& j: y/ k2 K' _$ ], k
end;
7 _( o8 H n( Z! z" D7 K1 G (3) repeat
, }! r2 y/ J2 r( u& `& a <statement sequence1>;* I( E# ?6 m/ z* P7 |5 F* U% h! H
until <condition>;
- a2 A+ f( ~3 _; c3 E (4) for <condition> to <condition> loop
. Z# y: G5 n( }9 l$ W! @4 ? <statement sequence1>;
" j1 d% y2 r! S- A, V* | next;3 E" J! \: M N$ e; P! G
3中断语句) X* X& m2 G' S. u/ H: i7 K
waituntil <condition> prio <integer expression>;
. h6 H6 }9 i, B& s. G
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以上为常用的函数！
* D; P+ w. R g# `0 C/ _9 H还有很多，如有需要我把资料发到你邮箱里 " g( Q- q) t+ g
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