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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
# d. b0 Q% P# v if <condition> then
% w3 Y& |( d0 {9 p$ E) a; Z! z <statement sequence1>;
0 e6 n+ y1 ^- y' V3 x1 F elseif <condition> then
# Z' L8 U( g! ?9 C$ a. S- z% K9 Q2 ]8 A' K <statement sequence2>;2 @. {9 @8 O! ?+ L" @5 S& X; C4 o: A! n
else # w9 ]7 `9 j7 E6 R- B1 t: c+ k' o
<statement sequence3>;0 I/ C% u- @- ]+ n; `* D
end;
; [5 S$ D% g* ?- A8 ]3 h4 E2 R如果分支比较多，用：% x+ s& L. | }! q/ r
inspect <expression>
+ V2 K8 ^' \( R: U8 X% l when <constant_list> then) Q1 _- S! L, [6 ? |& \
<statement sequence1>;! L- M& J5 T6 z# x) `8 Y$ U* q* C
when <constant_list> then
1 c/ P; ^0 s2 v <statement sequence2>;
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else6 z9 J" c. X- o1 u# F3 L7 S' Y# Q
<statement sequence3>;- D# l C$ a# O7 y" ]& Z
end;$ c" m+ I+ G3 \. a& b0 e# t3 @
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2循环语句
) Z3 _6 J2 Y& _: I9 ?2 m0 } (1) from <statement sequence1>. Z( I+ j* T; r9 ~! U {* s) D
until <condition> loop% b- @4 R" t$ h" ~4 q
<statement sequence2>;
- x2 J: H8 M+ F4 Q end;
. y* B4 V" p6 }; E! T# o( _1 Q (2) while <condition> loop/ X6 ~) z6 W1 i0 |: d; \$ ~1 T1 ]
<statement sequence1>;
+ N3 n$ {. F$ b- p t1 A end;( F% {1 ]4 |0 }# T, s; T
(3) repeat 3 B; W( f$ v O( ~, b) U
<statement sequence1>;
$ e' I' W' t3 W1 T, { until <condition>;
/ w& \. b& U3 O; m( s0 J6 T (4) for <condition> to <condition> loop
! [ ~% d4 b8 v <statement sequence1>;
5 p6 T7 B% b& r, Z7 S next;
5 `2 T( ~# Z, v! C3中断语句
1 s. h- y2 U4 j' G waituntil <condition> prio <integer expression>;* z. x* T8 P. V6 W4 b) N0 v
# ]6 V9 l# a$ o9 Z s
9 j( r$ p. I3 v% y
以上为常用的函数！
2 {9 L4 I2 k9 p- C& v7 X2 B0 U! B3 k还有很多，如有需要我把资料发到你邮箱里 # U" q* J- `2 m ^0 W* V% U
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: \$ s% U& F( h+ c# a1 ?' b6 d + n2 i0 [4 B' d% z6 c! T% z
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